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A mass of 50 g rotates on a smooth horizontal plane in a horizontal circle at the end of a string 1 meter long. Calculate the greatest possible speed of the mass given that the maximum tension that the string can withstand is 19.6 N.
An automobile tire has a radius of 0.325 m, and its center moves forward with a linear speed of v = 24.8 m/s. Determine the angular speed of the wheel
A 2.0 kg mass attached to a light spring with a spring constant of 46 N/m oscillates on a frictionless horizontal surface. Find the maximum speed of the mass in its oscillation
The electric motor of a model train accelerates the train from rest to 0.640 m/s in 22.0 ms. The total mass of the train is 530 g. Find the average power delivered to the train during its acceleration.
A box of mass 5.4 kg is accelerated from rest by a force across a floor at a rate of 2.0 m/s2 for 9.0 s. Find the net work done on the box
A high diver leaves the end of a 5.0 m high diving board and strikes the water 1.4 s later, 2.6 m beyond the end of the board. what is the angle with which she enters the water
A wheel is mounted on a stationary axle which we can assume frictionless. As a result, the wheel can turn freely but cannot translate. How much work is done by you on the pulling
A spherical conductor is charged so that its surface potential is Vo=1000V. If the radius of the sphere is R=10m, what is the potential in the center of the sphere
When a rifle is fired, the person firing the rifle absorbs the recoil. Consider an Olympic biathlete firing a competition rifle. What is the magnitude of the force absorbed by the athlete
A microwave transmitter emits electromagnetic waves of a single wavelength. The maximum electric ?eld 1.36 km from the transmitter is 6.26 V/m. Calculate the total power emitted by the transmitter
A kingfisher is hovering 30m above a lake when it drops a fish its carrying. What initial speed should it have if it is to reach the fish just before the fish hits the water
Two small nonconducting spheres have a total charge of 93.1 C. When placed 1.01 m apart, the force each exerts on the other is 11.5 N. What is the charge on each? What if the force was attractive?
A car accelerates uniformly from rest and covers a distance of 71 m in 5.6 s. If the diameter of a tire is 42 cm, Find total number of rotations of the wheel
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