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The froghopper, Philaenus spumarius, holds the world record for insect jumps. When leaping at an angle of 58.0m above the horizontal, some of the tiny critters have reached a maximum height of 54.7m above the level ground. What horizontal distance did the froghopper cover for this world-record leap?
A 350 kg piano slides 3.90 m down a 23 degree incline slope, and is kept from accelerating by a man who is pushing back on it parallel to incline. What is the force completed by the man.
A research submarine has a 40.0 cm -diameter window 8.10 cm thick. What is the submarine's maximum safe depth
The gauge pressure at the bottom of a reservoir is 5.0 times what it is at a depth of 2.1 m. How deep is the reservoir
What effect will increase in temperature from 25 degree Celsius to 32 degree Celsius of the metal metre stick have on the measurement of the dimension of rectangular block? Why are corrections not generally essential for this effect.
A tin can is filled with water to a depth of 38cm . A hole 20cm above the bottom of the can produces a stream of water that is directed at an angle of 30? above the horizontal. Find the maximum height of this stream of water
The horizontal and vertical components of the initial velocity of a football are 20m/s and 30m/s respectively. To what maximum height doe the football rise
After inverting the tube 100 times, the temperature of the lead shot is found to have increased by 30C. Calculate the work done on the lead shot
The 4.83- kg weight that drives the time mechanism of a grandfather clock descends 27 cm in exactly 24 hours.
How fast should a car move toward you for the car's horn to sound 2.88% higher in frequency than as the car is stationary? The speed of sound is 343 m/s.
A 69N box of clothes is pulled 8.9 m up a 30° ramp by a force of 100 N that points along the ramp. If the coefficient of kinetic friction between the box and ramp is 0.22, compute the change in the box's kinetic energy.
A large man sits on a four-legged chair with his feet off the floor. The combined mass of the man and chair is 95.0 kg. what pressure does each leg exert on the floor
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 12.0 cm, find the electric field just inside the paint layer
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