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A fully suited 100 kg astronaut stands on a spherical asteroid of diameter 1.0 km and mass 2.5 x 1012 kg.
a) What is the astronaut's "weight" on this asteroid?
b) With what speed must she jump to escape the asteroid?
A 4900 kg lunar lander is in orbit 60 km above the surface of the moon. How much work must the thrusters do
A 1.00x10^2 kg crate is being pushed across a horizontal floor by a force P that makes an angle of 30.0° below the horizontal. The coefficient of kinetic friction is 0.200. What must be the magnitude of P, so that the net work done by it and the k..
Tilted Land is flat, much like Western Utah, but in Tilted Land gravity does not point straight down! Where does the ball hit the ground
The electric field midway between two equal but opposite point charges is 878N/C , and the distance between the charges is 25.0cm. What is the magnitude of the charge on each (in C)?
If the coefficient of friction between road and tires on a rainy day is 0.120, what is the minimum distance in which the car will stop.
A bowl in the shape of half of a sphere is floating on the surface of water. The mass of the bowl is 0.8 kg. What is the outer radius of the bowl Rbowl
A rollercoaster car has a mass of 600 kg when fully loaded with passengers. what is the force of the track on the car at the top of the hill
A fighter jet is launched from an aircraft carrier with the aid of its own engines & a steam-powered catapult. The thrust of its engines is 2.3 x 105 N. In being launched from rest it moves through a distance of 87 m & has a kinetic energy of 4.5 ..
A point charge q = -2.4 nC is initially at rest adjacent to the negative plate of a capacitor, What is the kinetic energy of the point charge just before it hits the positive plate
Suppose 28.5 kg of 87.5°C water is placed in contact with 28.5 kg of 11°C water. What is the change in heat (in J) of the hot water
A well insulated rigid vessel also contains 3 kg of saturated liquid water at 40 oC. Determine the final temperature in the vessel after the resistance has been operating for 20 minutes
A top is a toy that is made to spin on its pointed end by pulling on a string wrapped around the body of the top. What is the final angular velocity of the top when the string is completely unwound
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