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A coin is placed on a vinyl stereo record making 33 1/3 revolutions per minute.
1. What force accelerates the coin?
2. In what direction is the acceleration of the coin?
3. In which of the three radii listed in b would the coin be most likely to fly off? Why?
4. Discover the magnitude of the acceleration when the coin is placed 5.0, 10.0, and 15.0 cm from the center of the record.
A 77.4 kg manm lifts a 1.3 kg box from the floor a height of 1.1m in 2.1 seconds, what is the change in gravitational potential energy
An airplane propeller is 3.08 in length (from tip to tip) and has a mass of 142. What is the propeller's angular speed after making 5.00
A listener increases his distance from a sound source by a factor of 3.62. what is the change in the sound intensity level in dB
A 0.75 kilogram ball, attached to the end of a horizontal cord, is rotated in a circle of radius 1.5 meter on a frictionless horizontal surface. find what is the maximum speed the ball can have
A van travels due east with a speed of 55.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. Determine the velocity of the rain with respect to the van
A 76 man weighs himself at the north pole and at the equator. How much higher is the scale reading in the north pole and by how much
A transverse wave on a string is described by the equation y(x, t) = (2.29 cm) sin[(107 rad/s)t + (18 rad/s)x]. How fast does the wave move along the string
A television set connected to a 120 outlet consumes 73 of power. How much current flows through the television
A person pushes a 13.0 kg lawn mower at constant speed with a force of 74.0 N directed along the handle, which is at an angle of ? = 40.0° to the horizontal (Fig. 4-40).b.Calculate the horizontal retarding force on the mower
A moving particle encounters an external electric field thatdecreases its kinetic energy from 8920 eVto 7400 eV as the particle moves fromposition A to position B. The electric potentialat A is -52.0 V, and the electricpotential at B is +26.9 V.
A hoodlum throws a stone vertically downward with an initial speed of 12.3 m/s from the roof of a building, 24.0 m above the ground. How long does it take the stone to reach the ground
What range is appropriate
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