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From the top of a 90 m cliff, Aaron throws a ball directly downwards with an initial velocity of 1.80 m/s.
1) What is the average velocity of the ball through this trip?
2) How long in seconds does the ball take to reach the ground?
3) What is in meters/second the velocity of the ball the minute it reaches the ground below?
4) At what position, in meters relative to the initial position did the instantaneous velocity of the ball equal the average velocity computed in the previous part?
5) How long in seconds will take it take the ball to have an instantaneous velocity equal the average velocity computed in the part c? Don't include units in the answer, use 10.0 m/s2 for g and use the upward direction as positive.
Consider a long wire that makes a right angle (90°) bend. If the wire carries a current I, what is the magnetic field at point A
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An object is placed 107.6 mm to the left of a diverging lens. Where is the image located when the lens has a focal point of 58.8 mm
A rope of negligible mass is wrapped around a 225 kg solid cylinder of radius 0.40 m. The cylinder is suspended some meters off the ground with its axis oriented horizontally, and turns on that axis without friction.
The skis have a thrust of 200. Sam's speed at the bottom is 43.0. Illustrate what is the coefficient of kinetic friction of his skis on snow?
A newly discovered planet has a mean radius of 2020 km. A vehicle on the planet\'s surface is moving in the same direction as the planet\'s rotation, what is the period of the planet\'s rotation
A particle leaves the origin with an initial velocity v=(2.4 m/s)x , and moves with constant acceleration a=(-1.9 m/s^2)x + (3.2 m/s^2)y. What is the particle's velocity at this time?
What are the corresponding velocity vectors
A bar magnet with its north pole pointing toward a coil of wire with a cross-sectional area of 0.020 m2, find the magnitude of the induced emf in the coil of wire
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Student C and D push on a box at the same time. The students are only pushing horizontally. No one pushed down or up on it. There is no friction. Find the magnitude and direction of the net force on the box
two objects one with mass will 80 g and the other with mass 20 g are pushed by a spring in opposite directions. if the
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