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A basketball player makes a jump shot. The 0.550 kilogram ball is released at a height of 2.10 meter above the floor with a speed of 7.00 m/s. The ball goes through the net 3.10 meter above the floor at a speed of 4.20 m/s. Determine the work done on the ball by air resistance, a non conservative force? J
A 49 kg bear slides, from rest, 10 m down a lodgepole pine tree, moving with a speed of 3.8 m/s just before hitting the ground. What is the average frictional force that acts on the sliding bear
as a health professional in australia there is a responsibility to protect our patient from being placed at risk of
You are pulling your younger sister along in a small wheeled cart. You weight 65.0 kg and the combined mass of your sister and the cart is 35.0 kg. What forces are applying to the ground in order to produce this acceleration
Suppose that a disk rotates through two revolutions in 4.2 seconds. What is its displacement in radians in this time
700 newton Marine in basic traning climbs a 10 meter wall vertical rope at a constant speed in 8 seconds. What is his power output
A refrigerator has a coefficient of performance of 2.15. Each cycle it absorbs 3.30×104 of heat from the cold reservoir. how much heat is discarded to the high-temperature reservoir
Inside a computer mouse, a delicate spring (k = 8.5 N/m) deflects a distance of 3 mm. How much force is required to cause this deflection
An outboard motor for a boat is cooled by lake water at 14.7 degC and has a compression ratio of 14.1, Calculate efficiency of the engine's Otto Cycle
Some thermometers indicate temperature by means of the thermal expansion of alcohol. by what percent does the volume change if the temperature changes by 9 F
A planet has a mass of 5.69Ã?1026 kg. The planet is not a perfect sphere, instead it is somewhat flattened. What is the escape speed at the poles
An object weighing 305 N in air is immersed in water after beingtied to a string connected to a balance. The scale now reads 271 N.Immersed in oil, the object appears to weigh 278 N . The density ofthe object is 8970.588 kg/m^3. Find the density of t..
Plot the probability distributions for the simple harmonic oscillator's ground state wave functions. Change the parameter that governs the ''width'' of the position distribution and see what happens to the width of the momentum distribution.
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