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A person is riding a bicycle, and its wheels have an angularvelocity of +20 rad/s. Then the brakes are applied and the bike isbrought to a uniform stop. During the braking, the angulardisplacement of each wheel is +15.92 revolutions.
a) How much timedoes it take for the bike to come to rest?
b) What is the angular accleration (in rad/s^2) of each wheel?
a bottle has a mass of 35 g when empty and98.45 g when filled with water. what is the specific gravity of the other fluid
A ball is thrown horizontally from the top of a 55 m building and lands 105 m from the base of the building, How long is the ball in the air in seconds
a 1cm-tall object placed 20cm front of a concave mirror produces a virtual image that is twice the height of the object. what is the length of the mirror
Three resistors, 20, 40, and 72 Ω, areconnected in series, and a 0.53-A current passes through them. What is the equivalent resistance?
A rubber ball is shot straight up from the ground with speed V0. Simultaneously, a second rubber ball at height h directly above the first ball is dropped from rest
Two boxes with different masses M1 = 0.7 kg and M2 = 2.3 kg are tied together on a frictionless ramp surface, What is the tension in the rope connecting the two boxes
An object whose mass is 4 kg is at a radius of r = [ ( -5 i + 3 k ) m ]. Gravity is in the direction of [- j ]. What is the torque produced by gravity
A sophomore with nothing better to do adds heat to 0.350 kg ofice at 0.0oC until it is all melted. What is the total change in entropy of the water and the heat source
A 1.80 m length of wire is held in an east-west direction and moves horizontally to the north with a speed of 14.9 m/s. Calculate the induced emf between the ends of the wire
If the wire is heated to 40.0°C while the 7.0-V potential difference is maintained, what is the resulting current in the wire
A highway engineer wants to design a horizontal turn so that a car with mass 623 kg can go 16.8 m/s around curve. what is the smallest radius she can make the turn
How far away does the ball strike the ground?
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