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A bullet is fired through a board, 14.0 cm thick, with its line of motion perpindicular to the face of the board. If it enters with a speed of 450 m/s and emerges with a speed of 220 m/s, what is the bullets acceleration as it passes through the board?
In the winter, a thin film of ice (nice = 1.31) can form on a window (nglass = 1.50). Calculate the minimum thickness of the film
Paper has a dielectric constant of 3.5 and a dielectric strength of 16 kV/mm. What is the capacitance of the device
A 768 kg car moving at 27 m/s brakes to a stop. The brakes contain about 16 kg of iron that absorb the energy. What is increase in temperature of the brakes
Water flows over Victoria Falls, which is 128 m high, at an average rate of 1.10 106 kg/s. If all the potential energy of this water were converted to electric energy, how much power would be produced by these falls?
A sticky hockey puck slides along a frictionless horizontal ice surface at 75m/s in the + x-direction. what is the angle of their final velocity vector below the +x direction
One liter of helium at STP is heated at constant volume to 100 C. It is then allowed to mix in an insulated container with one liter of methane which is initially at STP, the final volume being two liters.
a fighter jet lands on the deck of an aircraft carrier. it touches down with a speed of 73.5 ms and comes to a complete
What is first order diffraction angle of light
Imagine a landing craft approaching the surface of Callisto, one of Jupiter's moons. What is the weight of the landing craft in the vicinity of Callisto's surface
A light spring-gun projectile launcher is mounted on an 0.593 kg air track glider. compute the speed of the air-track glider after the gun is fired
A person of mass 80kg stands at the center of a rotating merry-go-round platform of radius 3.2m, Calculate the rotational kinetic energy of the system of platform plus person before and after the person's walk
An automobile has a total mass of 1700 kg. It accelerates from rest to 40 km/h in 10 s. Assume each wheel is a uniform 32 kg disk. determine the total kinetic energy of the automobile
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