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(a) What is the escape speed on a spherical asteroid whose radius is 510 km and whose gravitational acceleration at the surface is 3.3 m/s2?
(b) How far from the surface will a particle go if it leaves the asteroid's surface with a radial speed of 1000 m/s?
(c) With what speed will an object hit the asteroid if it is dropped from 1000 km above the surface?
A small sphere with mass 2.60g hangs by a thread between two large parallel vertical plates 5.00cm apart. The plates are insulating and have uniform surface charge densities and . The charge on the sphere is = 8.70×10?6C . What potential differenc..
Two cars are travelling on a desert road. After 5s, they are side by side at the next telephone pole. The distance between the poles is 70m.
An eyepiece of 2.6- cm focal length and an objective of 0.32- cm focal length are used in a standard microscope
A 92.0-kg astronaut and a 1200-kg satellite are separated from the space ship, and are both at rest with respect to the ship without any method of getting to the ship. how far away from the ship is the satellite
A lens is used as a magnifier to view an ant placed on a piece of paper. The image of the ant is 15cm from the lens and the magnification factor is 3. How far from the paper (the ant) is the lens
Two Jupiter-size planets are released from rest 5.00×1010m apart. What are their speeds as they crash together
Two horses pull a large crate of negligible mass at constant speed across a barn floor by means of two light steel cables. What is the work done by each horse
The critical angle for a special type of glass in air is 41.8. The index of refraction for water is 1.33. What is the critical angle if glass is immersed in water.
A 2.00-m tall basketball player is standing on the floor 10.0 m from the basket. If he shoots the ball at a 30 degree angle from the horizontal, at what initial speed must he throw the ball so that it goes through the basket without striking the back..
Find the gravitational attraction between two solid lead spheres of 1 kg mass each if the spheres are almost in contact
A proton moving at 4.30 106 m/s through a magnetic field of 1.75 T experiences a magnetic force of magnitude 8.04 10-13 N
you have encouraged your little sister, who has just gotten glasses for her severe near-sightedness, to give you those glasses so you can play with them. If your sister's face is 180. mm-tall, how tall will it appear to be in the image (in mm)
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