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The accommodation limits for Nearsighted Nick's eyes are 20.0 cm and 79.0 cm. When he wears his glasses, he is able to see faraway objects obviously. At what minimum distance is he able to see objects obviously?
An object of mass 15 kg falls from a height of 8.0 m above the ground. What will be its speed and kinetic energy when it hits the ground
A scaffold of mass 43 kg and length 6.5 m is supported in a horizontal position by a vertical cable at each end. What is the tension in the nearer cable
A cylinder contains 2.25 mol of helium gas at 21.0°C. Assume that the helium behaves like an ideal gas. What is the average kinetic energy per molecule
The equation of a transverse wave traveling along a very long string is y = 7.20 sin(0.0782?x+ 3.62?t), where x and y are expressed in centimeters and t s in seconds. Determine (a) the amplitude, (b) the wavelength, (c) the frequency, (d) the speed
A bolt comes loose from underneath an elevator that is moving upward at a speed of 4.5 m/s. How high up was the elevator when the bolt came loose
A sprinter explodes out of the starting block with an acceleration of+2.14 m/s2 , which she sustains for 1.26 s.Then her acceleration drops to zero for the rest of the race. What is her velocity at t = 1.26 s and at the end of the race?
A solid, horizontal cylinder of mass 9.0 kg and radius 1.30 m rotates with an angular speed of 8.00 rad/s about a fixed vertical axis through its center. Determine the final angular speed of the system
An apple falls from a tree and takes 4 s to reach the ground as reported by the earth-bound observer. how long did it take the apple to fall
A stunt driver is attempting to jump 20 cars of total length of 42m using an inclined ramp. Calculate how long the stunt driver is in the air during this stunt
When an incandescent light bulb is turned on, the tungsten filament becomes white hot. The temperature coefficient of resistivity fortungsten is a positive number. What happens to the power deliveredto the bulb as the filament heats up?
a 220 kg cylinder falls 2.5m in a joule water heater . as the cylinder falls it stirs the water. how much does the water temp change
Two balls, one larger than theother, roll without slipping across a horizontal floor with thesame center of mass velocity. The ball with the larger radius hasthe larger magnitude of angular velocity about an axis through its center of mass. A rota..
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