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A golf ball rolls off a horizontal cliff with an initial speed of 11.0 m/s. The ball falls a vertical distance of 13.0 m into a lake below.
1. How much time does the ball spend in the air?
s
2. What is the speed v of the ball just before it strikes the water?
m/s
The temperature of the surface of the sun is 6000K and its radius is 696,000Km. How much energy is the sun radiating into space per second
Two converging lenses are placed such that they are three focal lengths apart. What is the linear magnification of the lens system
An electron is in the first excited orbit of hydrogen, corresponding to n = 2. Find the radius of the orbit.
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A spotlight on a boat is 2.5 m above the water, and the light strikes the water at a point that is 8.0 m horizontally displaced from the spotlight (see the drawing). The depth of the water is 4.0m. Decide the distance d, which locates the point where..
Consider a large number of simple pendulums each of length b and massm, which possess energies lying between E1 and E2. Show that the Hamiltonian for each pendulum is an ellipse.
An object with a mass of 72.0 g displaces 590.0 ml of water when it is completely immersed. What is the buoyant force on the mass?
In order to drop a Pyrex glass marble 1.003 in diameter through the hole in the plate, how much must the temperature of the system be raised
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