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A large crate is pulled along a horizontal path at a constant speed by a cable that is inclined at an angle of 20° with respect to the horizontal. The tension in the cable is 2.4×10^3N. The power the cable supplies is 1.0×10^3W. How far will the crate move in 10 seconds?
A small object of mass 4.06 g and charge -16.5 µC is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground
Find the closest distance an alpha particle of kinetic energy 5.0MeV can approach a bare gold nucleus, What is its kinetic energy in eV when it is expelled to infinity
A 3.90-kg object is attached to a spring and placed on frictionless, horizontal surface. Find the total energy of the oscillating system
The figure shows the light intensity on a screen behind a double slit. The slit spacing is 0.20 mm, What is the distance from the slits to the screen
A Carnot engine whose cold reservoir temperature is 1.0 C has a thermal efficiency of 40%. By how much should the temperature of the hot reservoir be increased to raise the efficiency to 60%?
A person with a mass of 71.6 kg and a volume of 0.089 m3 floats quietly in water. (a) What is the volume of the person that is above the water?
A car of mass = 1400 travelling at 60.0 enters a banked turn covered with ice. The road is banked at an angle, and there is no friction between the road and the car's tires. Use = 9.80 throughout this problem.
A 70 kg bicyclist rides his 7.8 kg bicycle with a speed of 16 m/s. How much work must be done by the brakes to bring the bike and rider to a stop.
A mass m1 = 15.0 kg and a mass m2 = 11.5 kg are suspended by a pulley that has a radius of 10.2 cm and a mass of 3 kg, determine the tension in the left cord
Your little brother is sitting in a wagon playing with his toys. what was the velocity of the football when you threw it towards your brother
A 5 kg rock is dropped from rest down a vertical mine shaft. How long does it take for the rock to reach a depth of 79 m? Neglect air resistance.
A total of 8.07·106 electrons are placed on an initially uncharged wire of length 3.77 m. What is the magnitude of the acceleration of a proton placed at that point in space
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