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A spring with constant k = 78 N/m is at the base of a frictionless, 30.0o inclined plane. A 0.50 kilogram block is pressed against the spring, compressing it 0.20 meter from its equilibrium position. The block is then released. If the block is not attached to the spring, calculate how far up the incline will it travel before it stops?
A heating element in a stove is designed to dissipate 3380 W of heat when it is connected to 200 V. Assuming that the resistance is constant, Calculate the power the heating element dissipates
a skydiver of mass 80 kg jumps from a slow-moving airplane and reaches a terminal speed of 50 ms. what is the
A painter wishes to know whether or not he can safely stand on aladder. Calculate the maximum mass of the painter for which the ladder willremain stable when he climbs a distance d = 5.2 m up the ladder
Calculate the mass of a solid gold rectanglar bar that has dimensions lwh = 4.20 cm x 12.0 cm x 30.0 cm. (the density of gold is 19.3x10^3 kg/m^3.)
lightbulbs in AC circuits "flicker" in intensity, though the flicking is too fast for your eyes to sense it. how many times a second does the bulb reach peak brightness
Two waves with identical frequency but different amplitudes A1 = 6.0 cm and A2 = 3.0 cm, What is its amplitude if they interfere destructively
Positive pressure is used in blood transfusions. Suppose a container of blood is placed 1m above a vein where the venous pressure is 0.3 kPa
a grinding wheel is in the form of a uniform solid disk of radius 6.96 cm and mass 2.04 kg. it starts from rest and
the base of a record player is a disk that has a mass of 2 kg and a diameter of 34 cm. a child spins it so it rotates
1. the peak power of a 6ft. diameter antenna is 10 watts and its duty cycle is 0.250. the wave length is 0.03mcycle.
question1a softball of mass m 0.195 kg is pitched at a speed v0 27.3 ms. due to air resistance by time it reaches
50 g of gasoline are mixed with 38 g of water. What is the average density of the mixture
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