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You have landed on an unknown planet, Newtonia, and want to know what objects will weigh there. You find that when a certain tool is pushed on a frictionless horizontal surface by a12.0 Newton force, it moves 16.0 meter in the first 2.10 second, starting from rest. You next observe that if you release this tool from rest at 10.3 meter above the ground, it takes 2.68 second to reach the ground.
Find what does the tool weigh on Newtonia?
Find what would it weigh on Earth?
The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. find the magnitude of the electric field within the cell membrane
A 130 horizontal beam is supported at each end. A 310 piano rests a quarter of the way from one end. What is the vertical force on each of the supports
You and your friends find a rope that hangs down 18m from a high tree branch right at the edge of a wide river. How long must you hang on if you want to stay dry
Five clocks are being tested in a laboratory. Exactly at noon, as determined by the WWV time signal, on successive days of a week the clocks read as in the following table.
a soccer player kicks the ball toward a goal that is 27.0 m in front of him. the ball leaves his foot at a speed of
A long rod of lenght " L " and cross sectional area "A" is weighted such that when it is placed in a bucket of water it floats vertically. determine the magnitude of the buoyant force on the rod
An unknown number of moles of an ideal monoatomic gas expand reversibly from Vi = 2.30 m3 to Vf = 3.10 m3, at a constant pressure of 1.99 atm, Find the number of moles of gas
A spacecraft moving away from Earth emits a 4346 Hz signal. What is the speed of the spacecraft relative to Earth
Estimate the molar heat of vaporization of a liquid whose vaporpressure doubles when the temperature is raised from 85C to95C
A uniform rod is 3.0m long. the rod is pivoted about ahorizontal, frictionless pin through one end. what is the angular speed of the rod as it passes through the horizontal position
In a film projection apparatus it is desired to produce pictures12 feet wide on a screen 50 feet from the lens; What must be the focal length of the projection lens used
a space cowboy wants to eject from his spacecraft 1.60times105rm km after passing a space buoy as seen by spectators at
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