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Question: Suppose you carry a bag of groceries weighing 151 N from your car to your kitchen, a distance of 38 m, without raising or lowering the bag.
(a) What is the work done by the force you exert on the bag?
The average lifetime of a pi meson in its own frame of reference (i.e., the proper lifetime) is 2.6 10-8 s. What distance would it travel if time dilation did not occur
an open boxcar rolls at a constant speed of 6 ftsec down a 1.5 slope. then grain is poured in vertically downward at a
q1. suppose a small metal ball of mass and negative charge. the ball is released from rest at the point and constrained
Dizziness. Our balance is maintained, at least in part, by the endolymph fluid in the inner ear. Spinning displaces this fluid, causing dizziness, What is the radical acceleration (in m/s^2) of the endolymph fluid
a 120kg horizontal flywheel with a 0.5m radius rotates friction-free about an axis through its center. what is the angular acceleration of the flywheel
q1. a highway curve with a radius of 555 m is banked properly for the car travelling 150 kmh. if a 1650 kg porshe 928 s
Estimate the initial speed of that car assuming a level road.What would be the equilibrium temperature when a 252 block of copper at 275 is placed in a 136 aluminum calorimeter cup containing 807 of water at 14.90.
A skier of mass 62.00 kg is pulled up a slope by a motor-driven cable. (a) Explain how much work is required to pull him 55.00 m up a 30° slope (assumed frictionless) at a constant speed of 3.40 m/s?
A solid spherical ball of mass 1.21 kg and radius 0.07 m rolls along a smooth, level surface with a speed of 2 m/s. How far up the plane does the ball go
a gamma ray of 2.75 mev from 24na undergoes pair production in a lead shield. a how much kinetic energy mev is shared
The secondary coil of a neon sign transformer provides 7500 V at 10.0 mA. The primary coil operates on 120 V. What does the primary draw
A winch is used to drag a 300 N crate up a ramp at a constant speed of 68.0 cm/s by means of a rope that pulls parallel to the surface of the ramp. If the rope were suddenly to snap, what would be the acceleration of the crate immediately after the..
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