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In the Experiment, you calculated the ratios of the measured distances, i.e. the ratios of Effort Distance/Load Distance. What is the significance of these ratios? How did your calculations compare to your expectations?
n a cathode ray tube, electrons are accelerated from rest by a constant electric force of magnitude 6.6 ? 10-17 N during the first 1.9 cm of the tube's length, Find the speed of the electrons when they hit the screen
A uniform ladder 6.58 m long weighing 460 N rests with one end on the ground and the other end against a perfectly smooth vertical wall, Find the friction force that the floor exerts on the ladder
A 50 kg man is ice-skating due north with a velocity of 6.0 m/s when he collides with a 32 kg child. The man and child stay together and have a velocity of 3.0 m/s at an angle of 35° north of due east immediately after the collision.
A coffee cup heater and a lamp are connected in parallel to the same 120-V outlet. Find the resistance of the lamp
If it starts 4.70m from the lower edge of the roof, how fast will the toolbox be moving just as it reaches the edge of the roof if the kinetic friction force on it is 21.0N
A parallel-plate air-filled capacitor having area 44.0 cm2 and plate spacing 2.80 mm is charged to a potential difference of 620. V.
A textbook of mass 1.96 kg rests on a frictionless, horizontal surface. What is the moment of inertia of the pulley about its rotation axis
A nuclear device containing 8.00kg} of plutonium explodes. The rest mass of the products of the explosion is less than the original rest mass by one part in 10^4. How much energy is released in the explosion
A ship travels 80 km due north on the first day of a voyage, 50 km northeast on the second day, Find the resultant displacement by the polygon method
A skier (m=61.0 kg) starts sliding down from the top of a ski jump with negligible friction and takes off horizontally. Find her total kinetic energy as she reaches the ground
A parallel-plate capacitor is formed from two circular 20-cm-diameter plates spaced 1.0 mm apart. What is the charge (in nC) on the positive plate
A uniform density cube of mass m, side 2b, and center at C is placed on a fixed horizontal cylinder of radius r and center O in Earth's gravitational field. The cube is originally put so that C is centered above O, but it can roll from side to side w..
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