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find the center of mass of a uniformly solid cone of base diameter 2r and height h and solid hemisphere of radius r where the two bases are touching at the origin
An object is thrown vertically upward with aspeed of 5 m/s. It lands on the floor with a speed of 6 m/s.From what height was the object thrown?
Orange light of frequency 5.00E14 Hz is incident normally on a glass plate of thickness 2.50 cm and index of refraction 1.50. Find the number of waves in the plate at any instant
An 8.57-kg block slides with an initial speed of 1.64 m/s up a ramp inclined at an angle of 27.3° with the horizontal. Use energy conservation to find the distance the block slides before coming to rest
A length of wire has a total resistance of 120 ?. If cut up into N identical pieces, How many pieces did the original wire get cut up into
a block-spring system oscillates with an amplitude of 3.40 cm. the spring constant is 250 nm and the mass of the block
A "swing" ride at a carnival consists of chairs that are swung in a circle by 12.0 meter cables attached to a vertical rotating pole. Evaluate the tension in the cable attached to the chair
A person jumps from a second floor window and lands on her feet. Using the concepts of work and the conservation of energy, find the average force that is applied by her legs on landing
The mass of a robot is 5420 kg. This robot weighs 3670 N more on planet A than it does on planet B. Both planets have the same radius of 1.33 x 10^7 m. What is the difference MA - MB in the masses of these planets?
when the nuclear reactor accident occurred at chernobyl in 1986 2.0times107ci were released into the
A converging lens of focal length 0.169 meter forms a virtual image of an object. Find the distance between the object and the lens
A sort of "projectile launcher" is shown in Fig. 20-65. A large current moves in a closed loop composed of fixed rails, a power supply, and a very light, almost frictionless bar touching the rails. A magnetic field is perpendicular to the plane of th..
A 70Kg diver steps off a 10 m tower and drops from rest straight down into the water. If he comes to rest 5.0 m beneath the surface, decide average resistive force exerted on him by the water.
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