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Articles on gravity

When a rocket travels higher, air resistance decreases as the air becomes less dense. The force of gravity...?
also decreases because the rocket is farther from Earth, and the rocket's mass decreases as its fuel is used up. How is acceleration affected?

Physics problems about gravity!! plz help?
11.A Find the minimum kinetic energy needed for a 4.1 104 kg rocket to escape the Moon. B Find the minimum kinetic energy needed for a 4.1 104 kg rocket to escape the Earth. 12.C Meteorites from Mars Several meteorites found in Antarctica are believed to have come from Mars, including the famous ALH84001 meteorite that some believe contains fossils of ancient life on Mars. Meteorites from Mars are thought to get to Earth by being blasted off the Martian surface when a large object such as an asteroid or a comet crashes into the planet. What speed must a rock have to escape Mars?but thats excaltyy how my teacher put the question.. i have no idea how to do it S

What is net work done by the force of gravity?
A bead of mass m 6.10 kg is released from point A and slides on the frictionless track shown in Figure P5.30. The height of A is ha 5.00 m. b Determine the net work done by the force of gravity in moving the bead from A to C.

Plz help on this problem.. i really dont get it! physics gravity?
Gravity on Titan Titan is the largest moon of Saturn and the only moon in the solar system known to have a substantial atmosphereFind the acceleration due to gravity on Titan's surface, given that its mass is 1.35x10 23 kg and its radius is 2570 km.

Does someone know why they measure the gravity of earth at sea level?

What has the most gravity in the solar system?

Physics Review Problem: Spaceship question on gravity? - what formula do i use?
A spaceship orbits 4900km above the earth's surface. what is the value of gravity acting on the spaceship?

A quick question about gravity and mass PLEASE help i have a big test tomorrow!!!!?
1a When two masses, Mass A and Mass B, are 1.0 m apart, they exert a gravitational force of 1 N on each other. If Mass B is replaced by Mass C which is 200 times greater than Mass B, what will be the gravitational force between Mass A and Mass C?Remember the equation Fgrav mass 1 mass 2 distance2A F 200 200 1 2 40 000 NB F 1 1 200 2 0.000025 NC F 1 1 1 2 1 ND F 1 200 1 2 200NE F 1 200 1 2 20 N1b If Mass A and Mass C from the previous problem are separated to 10.0 m apart, what will be the gravitational force between them?A F 1 1 10 2 0.01 NB F 200 200 10 4000 NC F 1 200 10 2 2 ND F 1 200 10 20 NE F 200 200 10 2 400 NF F 1 10 200 2 0.00025 N NOTE the numbers in this problem are unrealistic, but are more simple to work with than a more realistic situation would be.

A trunk of mass 21 kg is on the floor. The trunk has a very small initial speed. The acceleration of gravity i?
What constant horizontal force pushing the trunk is required to give it a velocity of 10 m s in 20 s if the coefficient of sliding friction between the trunk and the floor is 0.58? Answer in units of N.

Is gravity caused by all energy moving to a "black-hole" or back to the singularity?

Why do we specify that the accepted value for "g" (gravity) is 9.8m/s^2 at sea level?
Why is it specifically at sea level? Philemon I don't really get what you mean. Please clarify and go into further detail.

What is the center of gravity of isosceles triangle?
will you please solve it for me?

How will you justify the 50-cm mark as the center of gravity of a meter stick?

Can the acceleration of gravity exceed the speed of light?
I don't understand how the acceleration of gravity is limited by the speed of light. If it holds true that the closer you get to the center of an object, the greater the acceleration of gravity towards it becomes, then wouldn't the acceleration of gravity be greater than that of light on the inside of a black holes' event horizon, seeing as the event horizon is the point at which g c and the black holes' center can still be billions of miles away?I mean, think about it Why would g simply flatline when it gets to the event horizon? g has been getting greater and greater as you approach the event horizon, so why would it simply become constant the rest of the way to the center of the black hole?