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A ball is attached to a center post by a string that is 0.481 m long. The ball is moving in a circle on a frictionless table top at a speed of 1.40 m/s with a radius of 0.481 m. What is the centripetal acceleration of the ball?
If the ball has a mass of 0.317 kg, what is the centripetal force acting on the ball?
The centripetal force refers to the NET force acting on the ball. The only force pulling the ball towards the center of the circle is the tension of the string. What is the tension in the string if the ball is traveling at 1.40 m/s in a circle of radius 0.481 m?
A car rounds a curve that is banked inward. The radius of curvature of the road is R = 139, the banking angle is ? = 31°, Find the minimum speed that the car can have without slipping
250.0 gram industrial mold absorbs 5,575 calories of heat when it is filled with an alloy. If the specific heat of the mold is 0.275 calories per gram degree Celsius, explain by how much does its temperature rise?
A flea pulls on a puck with force 7 microN at an angle of 30?. Another flea pulls on the puck with force 2 microN at an angle of -60?.
A cube of mass m1 = 8.8 kg is sitting on top of another cube of the same size, What is the magnitude of the normal force with which the bottom cube is acting on the top cube
A spring of force constant 205 N/m and unstretched length 0.260 m is stretched by two forces, How long will the spring now be
Determine the acceleration of the bullet while in the barrel? A bullet in a rifle barrel does not have constant acceleration, but constant acceleration is to be assumed for this problem.
Air that occupies 0.19 cubic meters at 1.03e+05 Pa gauge pressure is expanded isothermally to atmospheric pressure, Compute the work done by the air
A 52.6-kg skateboarder starts out with a speed of 2.16 m/s. He does 89.2 J of work on himself by pushing with his feet against the ground. Calculate the change (PEf - PE0) in the gravitational potential energy
A particle with mass 2.30 g and charge +10.0 uC enters through a small hole in a metal plate with a speed of 8.50 m/s, How far will the particle travel, delta x, before it hits the plate
Here is a demonstration Pascal used to show the importance of a fluid's pressure on the fluid's depth, What was the weight of the water in the tube
A 542 Hz sound wave travels through a substance. The wavelength of the sound wave is measured to be 1.9 meters. What is the speed of sound in the substance
a person has a near point of 40 cm and a far point of 2.0 m. when looking through lenses of focal length -2.0 m, what is the nearest an object can be to be seen clearly
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