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Why can satellites not attain the speed of light notwithstanding they are in absolute vacuum?
As the speed of an object approaches the speed of light, its kinetic energy approaches infinity. An object moving at the speed of light would require inifinite kinetic energy.
What is the instantaneous speed of an object 2 second after being dropped in a vacuum?
In a vacuum, the instantaneous speed of an object 2 seconds after being dropped would be approximately 19.6 m/s, as the acceleration due to gravity is 9.8 m/s^2 and the object would have been accelerating for 2 seconds.
What would be the displacement when the object moved at constant speed?
The displacement of an object moving at a constant speed is the distance between its initial and final positions in a straight line. It is not affected by the path taken by the object, only the length of the path matters.
What is the speed of a free falling object ten seconds after its release?
The speed of a free falling object ten seconds after its release will be approximately 98 m/s, assuming the object is in a vacuum and affected by gravity only. This speed is based on the acceleration due to gravity, which is approximately 9.8 m/s^2.
What is a good hypothesis for a hovercraft?
i think a good project would be seeing if the speed of the craft is affected by the weight of the person or object on it
What is a sound wave made by an object moving faster than the speed of light?
It is impossible for an object to move faster than the speed of light in a vacuum. According to the theory of relativity, as an object accelerates towards the speed of light, its mass would approach infinity. This would require an infinite amount of energy, making it physically impossible.
Which would fall faster in a vacuum a science table or a bar of soap?
In a vacuum they would both fall at the same speed.
How does the weight of an object affect the speed?
The weight of an object does not directly affect its speed. Instead, an object's speed is influenced by factors like the applied force, the object's mass, and the presence of friction. In a vacuum or in the absence of air resistance, objects of different weights would fall at the same rate due to gravity.
How can I time travel?
According to relativity theory, time stops for a particle when the speed of that particle reaches the speed of light in a vacuum. However, the theory of relativity also states that it is impossible for an object with nonzero mass to ever reach the speed of light in a vacuum. In other words: you can't, except in a few trivial instances such as photons, which are massless and already travel at the speed of light in a vacuum (er... at least, they do when they're in a vacuum). You may be asking about a video game, in which case it would help to know which one you're talking about. Video game physics are often quite different from real physics.
How long would it take before an object reaches a speed of 49 meters per second?
If you're talking about an object falling straight downward, that object being affected by a gravitational pull of 9.81m/sec, ignoring air resistance, it would take the object around 5 seconds to reach 49m/sec.
Is the speed of light the highest speed possible?
Yes, according to our current understanding of physics, the speed of light in a vacuum is the fastest speed at which energy, matter, and information can travel. Any object with mass that approaches the speed of light would require an infinite amount of energy to accelerate further.
Which of these would change the direction of an object but not affect the object's speed?
Changing an object's direction without affecting speed requires a force that acts perpendicular to the object's velocity, such as centripetal force or gravitational force. This force causes the object to change direction while continuing at a constant speed. Other forces acting parallel to the object's velocity can change its speed as well as its direction.
