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A solid uniform disk of radius 0.250 m and mass 55.0 kg rolls down an incline that makes an angle of 15 degrees with the horizontal. The disk starts from rest from the top of the ramp. Find the speed of the disk's center of mass when it reaches the bottom of the ramp(linear speed), its angular speed
A yo-yo has a rotational inertia of 930 gcm2 and amass of 110 g. Its axle radius is2.9 mm, and its string is 130 cm long. What is the magnitude of its linear acceleration
a spacecraft moves past a student with a relative velocity of .90 c. how much time has elapsed according to the student's watch
A volleyball is spiked so that its incoming velocity of+4.0m/s is changed to an outgoing velocity of -21 m/s. The mass ofthe volleyball is 0.35 kg. what is the change in momentum of the ball
An electron moves at a speed of 15000 m/s in a circular path of radius 2.2 cm. Find the strength of the magnetic field inside the solieod
Bicyclists in the Tour de France do enormous amounts of work during a race. How much work does he do during a 177-km race in which his average speed is 12.7 m/s
For no apparent reason, a poodle is running at a constant speed of 4.40 {rm m/s} in a circle with radius 3.0 {rm m}. Let vec v_1 be the velocity vector at time t_1, and let vec v_2 be the velocity vector at time t_2.
An ideal heat engine absorbs 81.2 kJ of heat and exhausts 66.1 kJ of heat in each cycle, How much work is done in a cycle
A spherical bowling ball with mass m = 3.2 kg and radius R = 0.107 m is thrown down the lane with an initial speed of v = 8.7 m/s. What is the magnitude of the final velocity
Each of the current-carrying wires in the figure is long and straight, and carries the current either into or out of the page, as shown. What is the direction of the net magnetic field produced by these three wires at the center of the triangle?
A human cannon ball is launched at 25.0 m/s at an angle of 30.0 degrees from horizontal. What is the velocity of the human after 0.540 seconds in terms of i and j
Assume this asteroid has the shape of a sphere. A rock sitting on the surface of the asteroid has a weight of 100 Newtons. How is the mass of the rock affected by its change in position
An unknown number of moles of an ideal monoatomic gas expand reversibly from Vi = 1.30 m3 to Vf = 2.20 m3, Find the number of moles of gas
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