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A bicycle wheel with a radius of 38 cm is given an angular acceleration of 2.80 rad/s2 by applying a force of 0.25 N on the edge of the wheel. What is the wheel's moment of inertia?
A ball is thrown horizontally from an elevation of 140.0 m above ground with a speed of 20.0m/s. How long before it hits the ground and where will it be with respect to the starting point once it lands
Four ropes, all at right angles to each other, pull on a ring. the force N, W; and D= 20N, S. Find the resultant direction of force on the ring
A lit firecracker is shot straight up at 50 m/s. How high is it above ground level 5 s later when it explodes? How fast is it moving when it blows up? How far has it fallen from its maximum height?
A 100 kg car travelling at 20 m/s collides with a 100 kg car traveling at 8 m/s in opposite direction, a) if the two cars stick together, what is their final velocity
A person pushes a 19.6-kg shopping cart at a constant velocity for a distance of 27.3 m on a flat horizontal surface. What is the magnitude of the force that the shopper exerts
question1a uniform electric field of magnitude 642 nc exists between two parallel plates that are 4.06 cm apart. a
If the coefficient of friction between the ladder and ground is 0.42, illustrate what is the mass of the heaviest person who can safely ascend to the top of the ladder?
A +6.00-µC charge is moving with a speed of 6.30 104 m/s parallel to a very long, straight wire. Find the magnitude and direction of the force on the charge
What is the magnitude of the net force on the student. A student who weighs 470N is wearing a backpack that weighs 84N. The student is standing still on level ground.
A small boat is headed for a harbor 30 km directly northwest of its current position when it is suddenly engulfed in heavy fog. The captain maintains a compass bearing of northwest and a speed of 9.8 km/h relative to the water. The fog lifts 3.0 h..
A sealed vertical cylinder of radius R and height h = 0.542 m is initially filled halfway with water, and the upper half is filled with air. By what distance is the depth of the water lowered
A test rocket is fired straight up from rest with a net acceleration of 20 m/s2. What maximum elevation does the rocket reach
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