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When venturing forth on Planet X, you throw a 5.01 kg rock upward at 12.6 m/s and find that it returns to the same level 1.51s later. What does the rock weigh on planet X?
A 2.6kg block slides along a frictionless surface at 2.0m/s . A second block, sliding at a faster 5.0m/s, collides with the first from behind and sticks to it. What was the mass of the second block
A 120 kg scaffold is 6.6 meters long. It is hanging with two wires, one from each end. A 540 kg box sits 1 meter from the left end. What is the tension in the right hand side wire
A cart is propelled over an xy plane with acceleration components ax = 6.1 m/s2 and ay = -1.7 m/s2. what is the velocity of the cart when it reaches its greatest y coordinate
A hand grenade (m=580g) slides across the (essentially frictionless) floor at a speed of 0.86 m/s. determine the speed of the second fragment
A ball is thrown vertically upward, starting at y = 0, with a velocity of 20.0 m/s. Take "up" to be the positive direction for this problem. Calculate the maximum vertical displacement of the ball
A chamber with a fixed volume of 1.0 m3 contains a monatomic gas at 3.00 102 K. The chamber is heated to a temperature of 5.00 102 K. How many gas molecules are in the chamber
What is swimmer velocity relative to the bank
In a certain particle accelerator, protons travel around a circular path of diameter 20.5 m in an evacuated chamber, What is the mean free path of the gas molecules
a merry go round (a disk I=1/2MR^2, M=500 kg, R = 1.5m) roatates at 2m/s. What is the new rotation rate for the merry go round with the child
What is the acceleration of a 1.00 gram drop of blood in the finger tips at the bottom of the swing? Find out force that the blood vessel must exert on the drop of blood in part (a)
A 28.0 {rm kg} child plays on a swing having support ropes that are 2.20 {rm m} long. A friend pulls her back until the ropes are 45.0^circ from the vertical and releases her from rest.
An electric vehicle starts from rest and accelerates at a rate of 1.9 m/s2 in a straight line until it reaches a speed of 28 m/s. How far does the vehicle move from start to stop
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