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A 3.0 kg block rests on a 30° slope and is attached by a string of negligible mass to a solid drum of mass 0.80 kg and radius 5.0 cm, as shown in Fig. 10.29. When released, the block accelerates down the slope at 1.6 m/s2. What is the coefficient of friction between block and slope?
A beam of light is traveling in air and strikes a material. The angles of incidence and refraction are 58.8°, Obtain the speed of light in the material
A light train is travelling on a straight section of track at a constant speed of 15 rm m/s. As it approaches next station, it starts to slow down at a rate of 5 rm m/s^2 until it stops at the station.
A square coil, enclosing an area with sides 3.4 cm long, is wrapped with 2,224 turns of wire. What average voltage is induced in the coil
Current & magnetic induction in the electrical circuits.
With what minimum speed should you toss a 140g ball straight up to hit the 11.0m-high roof of the gymnasium if you release the ball 1.30m above the ground? Resolve this problem using energy.
Six pendulums of mass and length are released from rest at the similar angle from vertical. Rank the pendulums according to the number of complete cycles of motion each pendulum goes through per minute.
While you are sitting on a chair at the edge of a 1.8 m deep swimming pool, your eyes are 1.7 m above the surface of the water. What is the horizontal distance between you and the acorn?
An electron initially at rest moves from one plate of a capacitor to another, through a potential di?erence of 2476 V, Find the speed with which the electron strikes the positive plate
A thin, uniform, metal bar, 3m long and weighing80N , is hanging vertically from the ceiling by a frictionless pivot, Find the angular speed of the bar just after the collision
A kg steel ball strikes a wall with a speed of m/s at an angle of with the surface. It bounces off with the similar speed and angle. If the ball is in contact with the wall for s, what is the average force exerted on the ball by the wall.
What are the displacement and velocity of the point on the cord. What is the magnitude of the acceleration of one of the liners toward the other because of their mutual gravitational attraction.
What is the volume of air at atmospheric pressure (100kPa) that must be pumped into a tyre that has a volume of 0.1 cubic meter?
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