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Question: A sphere of radius r is placed on a ramp at angle. What is the minimum coefficient of static friction that allows the sphere to roll without slipping?
If possible just a brief explanation how you got the answer? Thank you.
A thin hemispherical shell of radius R has a uniform surface charge, Find the electric field at the center of the base of the hemispherical shell
a mosquito collides head-on with a car traveling at 60 mph. is the force of the mosquito on the car larger than smaller
A child playing in a swimming pool realizes that it is easy to push a small inflated ball under the surface of the water while a large ball requires a lot of force
Some gliders are launched from the ground by means of a winch, which quickly reels in a towing cable attached to the glider. What average power must the winch supply in order to accelerate a 195-kg ultra light glider from rest to 28.4 m/s over a hori..
A 790-N cliff diver in Alcapulco drops from a cliff 20.60 m above the water's surface. If friction is disregarded, what is the cliff diver's speed just before striking the water.
A person walks 21° north of east for 3.30km. How far would another person walk due north and due east to arrive at the identical location.
what must the bandwidth be for a radar system which uses pulse widths of .1 us? if this radar is used for determining
A 2.50 kg block hangs from a spring. A 420 g body hung below the block stretches the spring 2.90 cm farther. (a) What is the spring constant? (b) If the 420 g body is removed and the block is set into oscillation, find the period of the motion.
The axis of a cylindrical container is vertical. The container is filled with equal masses of oil and water. The oil float son top of the water and the open surface of the oil is at a height h above the bottom of the container.
An electron is released near a (a) point charge, (b) an charged line of infinite length, or (c) an infinite charged plane. In which of these cases does the electron undergo constant acceleration?
A ski starts from rest and slides down a 29° incline 100 mlong. Use energy methods. how far will the ski travel along the level
Ions A and B are separated by 12 E -10m. Ion A has a charge of -2e. The electrostatic force between the two ions has a magnitude of 1.598 E -9 N. How many electrons are "missing" from it
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