Gravity

Oh, dude, those people are called physicists. They're the ones who study all the cool stuff like why things fall down and why we don't float away into space. So, like, next time you drop your sandwich, just remember there's a physicist out there somewhere analyzing the intricacies of gravity.

The general idea is that the escape velocity from Earth is 11.2 km/second. This assumes there is no atmosphere. I guess "thrust" would be expressed in units of force; the force can be just about anything, from just slightly bit more than the object's weight (to counter Earth's gravity), to a lot more, depending how long the force is applied. In other words, if you apply more force, you need to apply the force for less time to achieve escape velocity.

Some examples would be avalanche, landslide, debris flow, mudflow, and a sinkhole. Gravitational eroson is caused by gravity in contrast to the physical movement of wind and water required for other types of soil erosion. This involvs mass wasting and smaller scale erosion. Two types of mass movements are slump and creep

Well, honey, Neptune's gravity is actually stronger than Earth's gravity. Neptune is a big boy with a lot of mass, so it packs a bigger gravitational punch than our little blue planet. So, if you ever find yourself floating around in space near Neptune, you better hold on tight or you might just float away into the abyss.

The actual gravitational force at the surface of the Earth (about 9.81 m/sec/sec) will vary as the distance from the Earth's center varies, and also due to variations in the density of the rock layers under any given location.

Yes, Ceres, the largest object in the asteroid belt, has gravity. Its gravity is much weaker than Earth's, since it is a smaller body with less mass. Objects on the surface of Ceres experience gravitational attraction towards its center.

Earth;s Gravitational Acceleration is 9.8 m/s^(2)

Using the eq'n

a = (u - v)/t

a = 9/8 m/s^(2)

u = initial velocity of 0 m/s (lift off).

v = escape (final velicity)

t = time ( say 5 mins 300 s). (Probabky the time you can see it accelerating into space).

Hence

Algebraically rearranging

at = u - v

v = u - at.

v = 0 - (9.8 * 300 (

v = 9.8 300 = 2940 m/s

or

v = 2940 x 3600 / 1000

NB 3600 sec / hy

NNB 1000 m/ km

Hence

v = 10,500 km /hr.

This is not taking into consideration the mass of the rocket. When mass is included , although mass in reducing because of fuel combustion., a closer value is about 25,000 km/hr.

These are only hypothetical figures, but it gives an idea of the velocity required.

The force of gravity would weaken as you got further away from the Earth's surface and into outer space and therefore your weight would change. As you got nearer to the Moon, your weight would increase again but only to about 1/6th of your weight on Earth due to the fact the Moon's gravity is around 6 times less than that of Earth's.

Your mass would not change.

In the API gravity formula, 141.5 is a constant used to standardize the API gravity scale. It represents the specific gravity of water at 60°F. 131.5 is the specific gravity of the liquid being measured. By subtracting 131.5 from 141.5 and dividing the result by 0.1, you can calculate the API gravity of the liquid.

Mass and inertia are directly related: the greater the mass of an object, the greater its inertia. Inertia is the tendency of an object to resist changes in its state of motion, so a more massive object will require more force to accelerate or decelerate compared to a less massive object.

Assuming the rock is in free fall, it will accelerate due to gravity at approximately 32 feet per second squared. After falling 10,000 feet, it will reach a speed of roughly 160 ft/s (or 109 mph) just before hitting the ground, neglecting air resistance.

By differentiating between mass and weight, you show that you understand

that the answer to the question depends on where you are.

-- On or near Earth, 125 kg of mass weighs about 1225.9 newtons (275.8 pounds).

-- On or near the moon, it weighs about 202.9 newtons (45.6 pounds).

-- On or near Jupiter, it weighs about 3,235.6 newtons (727.4 pounds).

-- On or near Pluto, it weighs about 72.9 newtons (16.4 pounds).

It has different weights in other places.

You can place the object on the fulcrum of a seesaw to achieve physical balance. This is because the fulcrum is the point where the object's weight is evenly distributed on both sides of the seesaw, resulting in equilibrium.

The force depends on the mass of the object. That's why tall fat people weigh more

than short skinny people.

Whatever the mass of the object happens to be, the forces of gravity between the

Earth and the object are 9.8 newtons (about 2.205 pounds) per kilogram of mass,

in both directions.

Gravity plays a crucial role in the operation of roller coasters by providing the necessary force to propel the cars along the track. When a coaster climbs to a high point, gravitational potential energy is stored, which converts to kinetic energy as the train descends. This energy exchange allows the coaster to gain speed and navigate loops and turns. Ultimately, gravity ensures that the ride is thrilling while keeping it safe within the design of the track.

Pluto's gravity is relatively weak compared to that of Earth, with a surface gravity of about 0.62 meters per second squared (m/s²). This is approximately 6.3% of Earth's gravity, meaning that objects on Pluto weigh significantly less than they do on Earth. For example, a person weighing 100 pounds on Earth would weigh only about 6.3 pounds on Pluto. This low gravity is due to Pluto's small size and mass.

'Gravoty' is an attraction between any two or more objects, be those objects atoms, protons or planets. stars andything in between.

The planets have gravity , the Sun has gravity. They are attracted to each other. So why do they not 'crash' into each other? Because, the planets are moving with an acceleration. This acceleration together with the planets mass creates are force (F = ma). This force is balanced by the Sun's force of gravity. So the forces are in balance, so the planets orbit the Sun and not fall into the Sun.

The oceans on Earth, being liquid, will be attracted to the Moon by Lunar gravity. So which side of the Earth the Moon is on , will be the 'High Tide'. This is balabnced 'Like a wheel balance', by a counter High Tide on the opposite side of the Earth, from the Moon.

Without gravity, none of the stars or planets would maintain their forms. Gravity allows the Sun to maintain its energy generation while remaining as a single mass. Gravity allows the Earth to hold its atmosphere.

Indeed, gravity is the force that forms stars and planets, although the trigger that begins the process is still unclear.

Friend Hilmar Zonneveld is perfectly and absolutely right. Weight, being a vector, of an object will always act through the center of gravity. Also definition of centre of gravity confirms that whatever be the position the weight would always act through a point known to be center of gravity

It isn't, necessarily. But the force of gravity is constant, whereas the force

of air resistance depends on how fast you're moving through the air. So when

you begin to fall, gravity is stronger, and it makes you fall faster and faster.

But as your speed increases, so does the force of air resistance, and eventually,

the force of air resistance builds up to be equal to the force of gravity. At that

point, you keeep falling, but your speed doesn't grow any more.