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A jumper in the long-jump goes into the jump with a speed of 12m/s at an angle of 20 deg above the horizontal. How long is the jumper in the air before returning to the earth?
Calculate the moment of inertia and the rotational kinetic energy for the following objects spinning about a central axis
How much work is completed in charging the capacitor
A baseball is hit with a speed of 30ms-1 at an angle of 40degrees. It land`s on the flat roof of a nearby building with a height of 14 m. If the ball was hit when it was 1.40 m above the ground, what horizontal distance does it travel before it la..
A cement block accidentally falls from rest from the ledge of a 74.8-m-high building. When the block is 18.4 m above the ground, a man, 2.10 m tall, looks up and notices that the block is directly above him. How much time, at most, does the man have ..
You & your friend peter are putting new shingles on a roof pitched at 25 degrees. You are sitting on the very top of the roof when peter, who is at the edge of the roof directly below you, 5.1m away, asks you for the box of nails. Rather than carr..
A 1400 kg block is lifted at a constant speed of 4 cm/s by a steel cable that passes over a massless pulley to a motor-driven winch. What force must be exerted by the cable
A closely wound rectangular coil of 85.0 turns has dimensions of 26.0cm by 46.0cm. estimate the average emf induced in the coil
the light intensity incident on a metallic surface with a work function of 1.17eV produces photoelectrons with maximum kinetic energy of 4.17eV. what is the maximum kinetic energy of the photoelectrons
A 2.3cm high object is located 30cm from a diverging lens, whose focal length is 14cm. What is the height of the image produced by the lens
A ramp is 25 meters long and is inclined at 30 degrees with the horizontal. A block of mass 25 is pulled up at a constant acceleration of 1 m/s2. The coefficient of kinetic friction is 0.15. If the box starts at rest from the bottom, what would be..
What is the normal force that the incline exerts on the block. find the acceleration of the block.
A jogger jogs around a circular track with the diameter of 325 m in 16 minutes. What was the jogger's average speed in m/s.
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