# How much energy would be needed to accelerate a large spaceship to half the speed of light is?

# If something has low mass would it take less energy to get it to light speed?

As much as we've tried, no one's yet found a loophole in the equations. Regardless of its rest mass, pushing a chunk of matter to the speed of light would result in its acquiring infinite mass, and thus requiring an infinite amount of energy to put it "over the top." Einstein may not have said it… in so many words, but the short answer is, "You can't get there from here" -- if you took all the energy in the observable universe, rounded it up into the biggest laser ever and pointed it at a single electron, you couldn't push that electron to the speed of light. Ever. ( Full Answer )

# What voltage is needed to accelerate electrons to 1.5 times the speed of light in a CRT?

It is not possible to accelerate electrons--or anything else--to the speed of light, much less to 1.5 times the speed of light. .
Nominal operating voltages for a CRT range from a couple of thousand volts to a few tens of thousands of volts, depending on the application.

# How much money would it cost to travel at lightspeed in a spaceship?

Well let's assume that it is possible to travel at lightspeed and that an engine had been designed that could reach such speeds (for now lets assume a matter-antimatter engine) there are alot of logistics involved in this endeavour for example right now fermi-labs can produce 70,000 anti-protons per… hour at a cost of six trillion dollars an ounce you would need an estimated 1.5 ounces to go from earth to mars now assuming we accelerate at a constant 3 g's per sec at the cost of 1 ounce of anti-matter per hour we would need 50,000 lbs of anti-matter at 6 trillion dollars an ounce, plus food/water and air stores. Well that's alot of money. ( Full Answer )

# How long would it take to get to the moon at these speeds a bike at 10kmhr a car at 100 kmhr a spaceship at 20000 kmhr and at the speed of light going 300000 kmsecond?

given that the average distance distance from the Earth to the Moon is 382,500 KM a Bike @ 10km per hour would take 4.3 Years a Car @ 100km per hour would take 159.38 days a ship @ 20,000km per hour would take 19.13 hours @ the speed of light would take 1.28 seconds THIS IS ALL W…RONG ( Full Answer )

# Speed of spaceship?

Space shuttles can travel at extremely fast speeds. Typically,space shuttles orbit the Earth at slightly less than 20,000 milesper hour.

# In order to send a spaceship to explore outside your soloar system at what speed would the spaceship need to be projected from earth?

42,1 km/s. If we use Earth circulation the values are following: 1. Start from Earth surface: 16,7 km/s 2. Start from Earth orbita: 13,8 km/s Hope this helps.

# How much energy would it take for an electron to move at the speed of light?

Simply put, it would in theory require infinite energy. This is obviously not possible, at least not by our current understanding of physics. Therefore, once again in theory, nothing of ANY mass could be accelerated to the speed of light.

# How much would it be to get a spaceship on Saturn?

Since Saturn is a gas planet, you wouldn't ever "get a spaceship on Saturn" - either near it or in it. It would be a lot of effort and money - Saturn is the 6th planet, Mars the 3rd, so it'll be quite a bit farther to reach it. Mars is 193 million miles from the Sun, Saturn is 888 million miles from… the Sun; 695 Million more miles or 6.5 times farther. Since it is estimated a one way trip to Mars will take 3 months, a trip to Saturn will take 19.5 months or over a year and a half to get there. Return trips make it 6 months for Mars, 3.25 years for Saturn. ( Full Answer )

# If you were travelling at the speed of light and turned on a torch in your spaceship would you see a beam of light from the torch?

You can't travel at the speed of light. Accelerating a finite mass to lightspeed requires an infinite amount of energy. If you were traveling at nearly the speed of light, relativity says the beam of light from the torch would appear to you to be traveling just as fast as it would if you were sta…nding still. Uh, it's a bit academic, but in reality there's nothing that says a mass can't travel faster than light. While it's true that a mass can't be accelerated to the speed of light from any lesser velocity, it doesn't rule out masses that might always have had a velocity greater than the speed of light. ( Full Answer )

# How long would it take to accelerate to the speed of light?

Forever .
The time taken would be infinite . As any body with mass approaches the speed of light, it takes more and more force to accelerate it to c. You can never reach the exact speed of light.

# About how long would a spaceship traveling at half the speed of light take to get to alpha centauri?

First of all, a spacecraft would not travel a straight line; so the time required for the trip would have to be longer than the time required to simply travel the straight distance. But ignoring that little complication, the distance to the Alpha Centauri system is listed as 4.4 light years, meanin…g that it takes light 4.4 years to get from here to there. That tells me that if you travel the same distance at 1/2 the speed of light, it takes (4.4/0.5) = 8.8 years. ( Full Answer )

# If a body were accelerating at a rate making its mass equal to its normal mass on earth how long would it need to travel before reaching light speed?

It would take infinitely long in both time and space, and require and infinite amount of energy to accelerate any object with mass to the speed of light. In other words, it is impossible to reach the speed of light. Einstein's equations show that as an object approaches the speed of light, it's kine…tic energy is converted to mass making it heavier and heavier, require more force and energy to accelerate it. As a result at 99.999999% the speed of light the object would be come so massive that it would require more energy than the universe contains to push it fast enough to be going the speed of light. ( Full Answer )

# How can you accelerate to the speed of light?

No mass can be accelerated to the speed of light. Einstein showed this in his earliest papers, and we have not thought our way around restrictions that he showed were in place in nature.

# What would happen if you were traveling in a spaceship at just under speed of light and you turned your headlights on?

Simple. You would see a ray of light moving away from you at a speed that would equal the speed of light minus your speed. Not simple. If you know anything about anything, you know that someone asking this question does so because of an apparent paradox: Modern theory asserts that the speed of li…ght is a constant - that is, the laws of physics say that nothing may travel faster than the speed of light. This raises the issue of if you were in a vehicle travelling near the speed of light, how could photons from the headlights proceed ahead of you at the speed of light? This would apparently violate the speed of light as a constant, if you think of yourself as an outside observer of the spaceship, and add the spaceship's velocity to the constant ( c ). You would also know, despite many others on this website who eagerly point out that physics do not allow a spaceship to be accelerated to the speed of light, that this is a thought experiment which is useful for imagining the nature of our universe regardless of some condition which may be unattainable (in fact, a thought experiment usually includes such a condition precisely because it is unattainable and thus can only be thought out in the mind and not actually carried out in the real world). That said, here's some answers: This apparent paradox is invalidated by a frequently omitted piece of information regarding c, the constant speed of light - c is a constant for all observers in all frames of reference (in a vacuum). This means that regardless of whatever speed you travel, the speed of light is always the same from your viewpoint. Thus, if you were in a spaceship travelling close to the speed of light, c would still be the same for you and you would observe the light from your headlights extend outwards in front of the ship as would be expected in any other situation. It's tough to imagine, but you have to picture things in a much different ways because we are dealing with astronomical (literally) values in terms of velocity and space. Think about what actually constitutes speed . The speed of an object under normal circumstances is the distance it travels divided by the time it took to travel that distance. If a car drives 1km away from you in one minute its speed is 1km/minute. However, if a spaceship leaves earth, it must be travelling at escape velocity (the minimum speed to escape earth's gravity) - but wait! The earth is hurling through space around the sun at a high velocity, and the sun itself is orbiting our galaxy at yet another high velocity, and the galaxy is moving as well. Further, we might consider what speed it is travelling compared with some galaxy on the other side of the universe, when the actual amount of space in the universe is itself expanding (so to speak). So what speed is the spaceship actually travelling at? It depends on your frame of reference. It's easy to picture the ship's velocity in terms of how fast it is moving away from you, but it is much more difficult to picture its velocity in reference with other planets or stars, which are themselves moving. In fact, everything in the universe is moving - that is, you could not plot a coordinate system across the universe and expect anything to remain stationary with reference to any point in your system. Thus, there is no such thing as an absolute velocity, since the velocity of some object you are observing always depends on where you are and how fast you are moving - that is, there is no absolute velocity except for c, the constant speed of light in a vacuum. To explore further, you may want to consider what might happen if you were watching a spaceship turn on its headlights while travelling towards you at the speed of light! Interesting topics which are related: -Einstein described space and time as one -Time dilation says that objects which are moving faster than you are experience less time passing than you are, meaning that if I was born at the same time as you, and I left earth in a spaceship travelling at a high velocity, I would return to earth somewhat younger than you are. Less time has passed for me than it has for you. Why? -Use of proper distance -The expansion of the Universe and the Hubble constant -Cosmic background radiation (we can actually observe the beginning of the universe - the big bang - in present day!) ( Full Answer )

# What is the speed of the spaceship?

It varies greatly. It will depend on how far away it is from the object it's orbiting. If it is in a circular orbit around the Earth, its speed can be calculated by the formula: speed = Squareroot(398600/(6371+altitude)) This will give you an answer in kilometers per second.

# What happens to mass when a spaceship appraoches the speed of light?

If speed approaches the speed of light, the mass of any object will increase. This is not just theory; it is observed on a daily basis. Not with spaceships, of course; the technology is not ready yet - but with subatomic particles in accelerators.

# How large would the lattice energy need to be for the formation of NaCl2 to be exothermic?

The lattice energy would need to be 4711 kJ for the formation of NaCl2 to be exothermic.

# What speed does a spaceship need to travel outer space?

I think this is a question about Escape Velocity.The Escape Velocity for the Earth at the Earth's surface is 11.2km/s (around 2,200mph). That is the speed you would have to launch an object if you wanted it to leave the Earth permanently without any further thrust. If you haven't noticed 11.2km/s is… very, very fast. Indeed much too fast for most objects not to simply burn up in the atmosphere. If you have seen a rocket launch you will see that the rocket does not leave the ground at 11.2km/s. Because rockets have a continuous thrust (rather than a momentary one) they do not leave at the escape velocity but accelerate over time. The Escape Velocity drops remarkably quickly with increasing distance from the Earth, hence it is easier to escape from low-earth orbit than from the surface. Once in space a craft can use smaller rockets to escape. It is important to note that rockets do not need to achieve escape velocity to reach space, only ships which are not supposed to return need to reach the local escape velocity (eg. the Voyager probes). ( Full Answer )

# Can you get a spaceship to go 80-90 percent the speed of light?

There are no theoretical boundaries, except the terrible amount of energy that is required. The Kinetic energy (T) of a spaceship is T=(1/sqrt(1-v^2/c^2)-1)m*c^2 To give you an idea of numbers, taking a 1 ton spaceship traveling at 80% the speed of light, this yields a kinetic energy of abo…ut 36 000 megatons of TNT, which is very roughly equal to one or two small nuclear weapons. In the future, it may become possible, but the absurd energy requirements, as well as getting the people on board to survive the acceleration make this technology elusive. ( Full Answer )

# How much kinetic energy would a particle have if it could move at the speed of light?

Anything that has mass when it's moving slower than light hasinfinite mass when its moving at the speed of light, so its kinetic energy would beinfinite. That's a big part of the reason why no thing can be made to move at the speed oflight ... all of that infinite kinetic energy would have to come f…rom someplace. ( Full Answer )

# How much time you need for 15km with the speed of light?

About 0.00005seconds in air. The spee of light in air is nearly 300000km/s. So, time required will be 15/300000\nseconds which is 0.00005.

# Why do scifi spaceships always have a maximum speed of x percent for example 50 percent or 30 percent of the speed of light what stops them from accelerating to 99 percent without air resistance?

Even at modest %'s of the speed of light objects start to radiate their energy away in Gravitational Waves. So it is very expensive to approach the speed of light when most of your effort is just radiated away.

# If a spaceship 100 m long when at rest on the earth were to travel at nine-tenths the speed of light its length as measured by an observer on the earth would be what?

First of all, its nose has to point in the direction of motion, or you don't get the answer you're fishing for. The contraction only occurs in the direction of motion. If the length of the ship is 100 meters in the reference frame in which it's at rest, and it then departs at 90% of the speed… of light, the same observer in the same reference frame now sees it contract to a length of 43.59 meters . ( Full Answer )

# If you traveled to Proxima Centauri at half the speed of light how much time would it take to get there and how long would it seem to the astronauts?

If we put an astronaut into a spacecraft that leaves the earth at 1/2 the speed of light and continues at that speed, then he would cover the 4.4 light years distance to Proxima Centauri when our calendar reads 8.8 years later. Inside the spacecraft, at 0.5 the speed of light, it would seem l…ike 7.62 years to him. If he sent us a radio message as soon as he arrived there, we would receive the news from him 13.2 years after he left. ( Full Answer )

# What is the speed of light energy?

the speed of light is 300,000 kilometers per second. and if you ask about how far the sun is from earth that would be 150,000,000 kilometers so in calculation that would mean it would take just about 8 minutes and 17 seconds for the suns light and heat to travel to the earth. now imagine the earth w…ithout the o-zone layer we would be fried like mercury. Ã¢Â˜Âº ( Full Answer )

# Energy that travels at speed of light?

That can be light, or some other electromagnetic wave (light is anelectromagnetic wave), or gravitational waves.

# How much energy is needed to travel at the speed of light?

It is not possible for any object with any mass to travel at the speed of light. It is possible to travel at 99.9999999999999999999999999999999999999% the speed of light, you could even travel at "99.9 followed by a trillion trillion 9s"% of the speed of light but never quite 100%. According to our… current mathematical theories, for an object with any mass to travel at the speed of light it would take infinite energy to attain that speed. ( Full Answer )

# What is the relation of speed of light with energy?

E=mc 2 Einstein's formula tells us the amount of energy a mass would be equivalent to, if it were all suddenly turned into energy. It says that to find the energy, you multiply the mass by the square of the speed of light, this number being about 300,000,000 meters per second.

# Hypothetically How long would it take to accelerate to light speed at 1g?

No matter how long you accelerate at 1g, you will never quite reach the speed of light, only approach it. A simple calculation that does NOT take into account the Theory of Relativity is 300,000,000 m/s divided by 10 m/s 2 = 30 million seconds, which is about a year. But when you start approaching …the speed of light, both time and distance get distorted, so that you won't quite be able to reach the speed of light. ( Full Answer )

# Is it possible to travel half the speed of light?

Yes it absolutely is, however, this is not for humans. At particle accelerators, like the Large Hadron Collider in Geneva, Switzerland, physics are able to send particles 99.99999% the speed of light. The particles are only 3 meters per second slower than light itself. In turn, physics are able to s…hoot a particle half the speed of light approx. 150,000 meters per second. ( Full Answer )

# What energy moves at the speed of light?

Light is just something within the Electro-magnetic spectrum. Many other things move at the speed of light etc. Gamma Rays and Microwaves. Only a section of it is visible being light. These all fall under Electro-magnetic radiation. Therefore light in a type of electro-magnetic radiation.

# How much energy is produced when you push a box with a mass of 10kg at the speed of light?

A moving box doesn't produce energy. If you want to move the box,then YOU have to produce whatever energy it requires. Normally, you takeenergy out of food, and run it through your muscles to move things. That's only one of the myths, misunderstandings, and unscientificcontortions packed into your …brief question. I'll try to deal with a few more: -- It doesn't take any energy at all to move an object at aconstant speed. Once you push it up to the speed you want, you can let go, and it keepsgoing at the same speed in a straight line forever ... as long as nothing comesalong to slow it down or stop it, like friction, air, or a brick wall. -- The mass of the box depends on its speed. At what speed is itsmass 10 kg ? -- Anything that has any mass when it's sitting still, or when it'smoving at any speed less than the speed of light, would have infinite mass atlight speed. So as far as that object is concerned, light speed is never goingto happen. -- If you want to make an object move faster, you have to come upwith more energy somehow, then push the object in order to pump that energyinto it. Since the object's mass is growing as it moves faster, the amountof energy you have to supply to make it go even faster keeps growing too. Ifit ever gets anywhere near the speed of light, then its mass is heading towardinfinity, and so is the amount of energy you need to add to it for any increasein its speed. Sooner or later, the amount of energy you'll need to make it go 1mph faster will be more than the electrical energy that everyone in the USA uses in10 years. -- Also don't forget ... all the while you're doing this, YOU haveto keep up with the box so you can stretch out your arms and keep pushing it. SoYOU have to keep moving faster and faster, and YOUR mass keeps growing too, andyou need more and more energy just to stay even with the box so that you canpush it. ( Full Answer )

# How much would an object age if it traveled 1 year at half the speed of light?

by our standards; 1 year (the logical answer).... by the objects standards; ask a mathematician who knows the formula

# How can a small particle say a neutrino travel ALMOST at the speed of light when it would take an infinite amount of energy to travel at the speed of light?

Firstly, it takes an infinite amount of energy to accelerate an object with 'mass' to the speed of light. A massless particle removes that energy problem. Secondly, approaching the speed of light is not actually much of an issue for even a particle with mass. The Large Hadron Collider accelerates… particles to just 3m/s below the speed of light, 'almost the speed of light' by any definition. While it takes an immense amount of energy, it can still be done. ( Full Answer )

# What type of engine and what number of them would you need to reach the speed of light?

As far as we understand physics today, we won't ever be able to get to the speed of light. The faster you go, the harder it gets to go any faster. So that last little fraction will "always" remain impossible - or at least until someone invents a whole new branch of physics.

# How long would it take for a Ferrari accelerating 0-60 in 4.2 seconds to reach the speed of light?

It is technically impossible to accelerate to the speed of light.That would require an infinite amount of energy. However, based on a simple,linear equation: Going from 0-60 mph in 4.2 seconds is an averageacceleration of about 6.38 m / s 2 . The speed oflight is 299,792,458 m / s . This gives us… a result of about 46,943,164 seconds, or 1 yr 178 da 1 hr 46 min . (rounded) ( Full Answer )

# How much energy would be required to accelerate a 1kg of mass up to the speed of light?

Concerning Albert Einstein's special theory of relativity, no mass can be accelerated to the speed with light: this would acquire an infinitely amount of energy. For the special interested: the European Organisation for Nuclear Research (CERN), recently registered particles (Neutrinos) traveli…ng faster than light. This is rather new research and are being debated and retested per today (2011), and will highly affect modern physics if proven true. UPDATE: per 2012, CERN found a computer error concerning their calculations of the neutrino's speed: it did not travel faster than light! Thus, Einstein's special theory of relativity still stands strong. ==== If anything has any mass when it's not moving at the speed of light, then it takes an infinite amount of energy to accelerate it to the speed of light. ( Full Answer )

# What chemical would a man need in him to move at the speed of light because I found out that there are some that can do that.?

It isn't possible for a man to move at the speed of light. You may have seen something on television, and confused facts with fantasy.

# How long would it take to reach the star Vega if a spaceship could travel at one-tenth the speed of light?

Vega is relatively close at 25 light years. At one tenth of the speed of light, it would still take 250 years to reach it from our solar system.

# How long would it take for a spaceship to get to Ganymede if it was going the speed of light?

Ganymede, a moon of Jupiter, is orbits the planet at a distance of 1.070x10 6 km. Jupiter's distance from Earth ranges from 588.5x10 6 km to 968.1x10 6 km, depending on it's location in it's orbit relative to Earth. Ganymede's distance from Earth, then, would range between 482.5x10 6 km and 1075….1x10 6 km. If a spacecraft was travelling at the speed of light (which is equal to about 3x10 8 m/s, or 3x10 5 km/s), then it would take anywhere from 1608s (or 26.8 minutes) to 3227s (or 54 minutes), depending on where the Ganymede, Jupiter, and the Earth are relatively located to one another. ( Full Answer )

# How much energy would be required to accelerate an object to the speed of light?

No amount of energy can accelerate a material object to the speed of light (at which energy can nevertheless travel). This is because an effect of increased velocity is an apparent increase in mass -- as the object approached the speed of light, its mass would approach infinite, so an infinite amoun…t of energy would be required to accelerate the mass. However, it is theoretically possible to attain a reasonable fraction of the speed of light, in the range from 0.1 c to 0.9 c , given a suitable source of energy such as mass annihilation. ( Full Answer )

# Can humans travel at half the speed of light?

The speed wouldn't harm us, if we could reach it. But we have no way to get there yet. If you had a rocket or a car carrying enough fuel to keep accelerating you at 2G's, let's say ... night and day, 24 hours around the clock ... then if you could stand the load of dragging around double your… weight, it would take you something like 6 months of that to reach 1 / 2 the speed of light. ( Full Answer )

# How much energy you would produce if you were going the speed of light?

Since no object with mass can reach the speed of light -- such an object can only approach that speed -- the question is meaningless.

# What is one half the speed of light?

c / 2 = 149,896,229 meters (93,141.2 miles) per second, in vacuum. In material media, divide this number by the refractive index of the medium to find one half of the speed of light in that medium.

# What would be required for a spaceship to travel faster than the speed of light?

There is no known way to achieve this, as well as a great deal of consistent and convincing work in Physics over the past 100 years or so that says it's fundamentally impossible.

# Does the speed of light accelerate?

The speed of light does not accelerate as it is a constant speed. Protons which make up light however, do accelerate to achieve this speed as they rapidly travel through space.

# What happens if you step outside of a spaceship traveling at light speed?

Well first of all, you don't. No object that has any mass when it'ssitting still will ever travel at light speed. To answer your question in general: If you're sitting inside aspaceship, sipping a cup of coffee and surfing the web, and you decide to take a break fromyour back-breaking labor and ste…p outside for a few minutes, then the moment you'reoutside, you continue traveling at the same speed and in the same direction that the shipwas when you let go of it. If the ship is traveling with constant velocity ... constant speedin a straight line ... then you seem to float motionless next to it, because your speed anddirection are exactly the same as the spaceship's. If the ship is accelerating, then youkeep the speed and direction that you and it had when you let go, and the ship goes onits own merry way, leaving you behind, beside, or ahead. ( Full Answer )

# Why can you not invent spaceship that travels near the speed of light?

There's no technical reason that you can't, but it's so impracticalthat there's no reason to go after it. Here are a few considerations: -- The time required to reach near-light-speed ... withacceleration that's low enough that it wouldn't kill life aboard or smash machineryaboard ... would exceed …a human lifetime. -- The same goes for the process of slowing down to landing-speedor orbiting-speed, when the ship arrives at its destination. -- The fuel required to power engines, at least chemical ones, toaccelerate a spacecraft to near-light-speed, would need tanks the size ofmountains ... which themselves would have to be accelerated to the same speed. -- The cost would be, well, larger than the spacecraft, andcompletely out of the question for any possible funding organization. ( Full Answer )

# How much gas does a spaceship need?

That depends entirely on the engine. For instance, the primary delivery vehicle of the Apollo programwas the Saturn V:.. The Saturn V was comprised of three stages. thefirst stage carried roughly 4.75 million pounds of RP-1 and liquidoxygen. Stage two was fueled with 920,000 pounds of liquid hydrog…enand LOX. Stage three carried 233,000 pounds of LH/LOX. As the example, the Saturn carried a spaceship, but hardlyqualified as one, never quite leaving the atmosphere. ( Full Answer )

# How much time would pass at the speed of light?

It's really hard to talk about something that's moving AT the speed of light. So let's just talk about something that's moving at only 99.9999% of it ... that's actually done every day in particle accelerators. OK. You and a bunch of other people are standing around in a big field on a nice… day, looking at each other, listening to the birds, and generally getting bored. Finally, in order to liven things up, you take off and fly away from the crowd, at 99.9999% of the speed of light. They watch you, in amazement, and you look back at them, just to see the startled expression on everyone's face. Immediately, you and everybody else notice something really strange going on: -- You feel completely normal, and your pulse is beating around 65 beats for each minute on your wristwatch. But anybody standing in the field and watching you sees that according to his wristwatch, your heart and your wristwatch are running so slowly that they've both almost stopped. -- Everybody standing in the field feels completely normal, and everybody's pulse is beating around 65 beats for each minute on his wristwatch. But as you watch them, you see that according to your wristwatch, the heart and the wristwatch of every person in the crowd are running so slowly that all of them have almost stopped. ( Full Answer )