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A box slides down a rough, 25 Degree incline with a coefficient of kinetic friction between the box and incline of 0.7. At a distance of 1.5 m from the bottom the box is moving at 3.5 m/s. What will be its speed at the bottom. Your answer should be in m/s and given to 3 significant figures.
A soccer ball lying on the ground is kicked with an initial velocity of 10.0 m/s at an angle of 37 degrees above the horizontal. How far over does it land on the ground?
A wave has an angular frequency of 110 rad/s, Calculate the angular wave number and the speed of the wave
A bird, starting from its nest (we'll call that the origin), flies 24.0 km due southeast. It then changes directions and flies 26.0 km in a direction 60° north of east. Find the magnitude and direction of its resultant displacement.
Consider a swinging pendulum with length l= 10 cm, a mass of 1 gm swinging at the end of it with an amplitude, Calculate the total energy ( potential plus kinetic) in ergs of the swinging pendulum
A simple harmonic oscillator with m = 0.740kg and total energy E = 125J has amplitude 1.65m, Find the maximum acceleration
suppose that r2/r1 = 10.0 cm and ignoring any air inside the shell, find the temperature of the outer surface of the shell.
What is the electric force
compute the distance x the spring was compressed.
A heat engine operates between two reservoirs whose temperatures are 139.3°C, What is the maximum efficiency of this engine
Find out the altitude of the plane
A luge and its rider, with a total mass of 90 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 38 m/s. If a force slows them to a stop at a constant rate of 1.4 m/s2.
The power required by an ice maker is 225 W and is the rate at which it does work. determine the maximum amount of ice the unit can produce in one day
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