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A person with a mass of 65 kilogram skis down a frictionless hill that is 5.0 meter high. At the bottom of the hill the terrain levels out. As the person reaches the horizontal portion, he grabs a 20-kilogram backpack and skis off a 2.0 meter high ledge. Find at what horizontal distance from the edge of the ledge does the person land?
A carpenter is driving a nail into a board. The 1.25 kg hammer moves at 8.85 m/s when it strikes the nail. find the increase in temperature of the nail after 3 blows from the hammer
A 20 cm-long solenoid carrying a current of 8mA is oriented with its axis parallel to earth's magnetic field, how many turns of wire should the solenoid have
A capacitor is completely charged with 670 nC by a voltage source that had 275 V. It's capacitance is 2.44nF. What is the stored energy if the air gap is now 4 mm
a force of 4.00 times 10-2 n is needed to move a charge of 63.0 microc a distance of 16.0 cm in the direction of a
A man drags a 76-kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. The crate is tilted 25° above the horizontal, and the strap is inclined 61° above the horizontal.
An 80.0-kg man jumps from a height of 2.50 m onto a platformmounted on springs, What is the man's speed at the instant he depresses the platform 0.120 m
an astronaut on the planet zircon tosses a rock horizontally with a speed of 6.55ms . the rock falls through a vertical
A mass spectrometer applies a voltage of 2.00 kV to accelerate a singly charged positive ion. What is the mass of the ion
A rifle is aimed horizontally at a target 30 m away. The bullet hits the target 2.10 cm below the aiming point. What is the bullet's time of flight
In an oscillating LC circuit, 75% of the total energy is stored in the magnetic field of the inductor at a certain time. In terms of Qmax, the maximum charge on the capacitor,
A 253 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal.
At a market a bunch of bananas are set on a spring scale tomeasure their weight. What is the massof the bananas
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