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In one day, a 90kg mountain climber ascends from the 1520m level on a vertical cliff to the top at 2360m . The next day, she descends from the top to the base of the cliff, which is at an elevation of 1350m .
A. What is her change in gravitational potential energy on the first day?
B. What is her change in gravitational potential energy on the first day?
what will be the height h of the highest point reached by the skateboarder on the right side of the ramp.
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Gold, which has a density of 19.32 g/cm3, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber, what is the area (in m2) of the leaf
With what force F should she pull down on the rope to accelerate herself and platform upward at a rate of 0.77 m/s2.
What focal length does the lens need. Find out the electrostatic force exerted on one sphere by the other.
Given a capacitor whose plates measure 15cm by 3.7 cm and are separated by a 2.2mm air gap. Calculate he maximum amount of energy which can be stored in the capacitor under these conditions
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A straight horizontal wire carries a current of 6.50 μA. An electron is moving above the wire the direction parallel to it and in the same direction as the conventional current in the wire.
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The position function x(t) of a particle moving along an x axis is x = 4.5 - 4.5t2, with x in meters and t in seconds.
The distance between the first and fifth minimum on a screen 60 cm behind the slits is 6.0 mm. What is the wavelength of the light used in this experiment.
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