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1) Starting from rest, a solid sphere begins to spin reaching its angular speed of 3.17 rad/s after 0.300 seconds.
(a) What was its angular acceleration during this process?
(b) What is the moment of inertia if the sphere has a mass of 2.40 kg and a radius of 0.450 m?
(c) What torque was needed to produce this angular acceleration?
The asteroid belt circles the sun among the orbits of Mars and Jupiter. One asteroid has a period of 5.0 earth years. What is the asteroid's orbital speed? What is the asteroid's orbital radius? The moon's force is what percent of the sun's force? Wh..
At t = 0 a grinding wheel has an angular velocity of 24.0 rad/s. It has a constant angular acceleration of 3.0 rad/s2 until a circuit breaker trips at t = 2.00 s. What was its acceleration as it slowed down
A car in an amusement park travels without friction on a vertical loop of 20 m radius. Calculate from what minimum height h it needs to be released from rest in order to remain on the track at the top of the loop.
A truck of mass 10012 kg moving at a speed of 63.2 mph has lost its brakes. How far along the incline (?x) does the truck travel before it stops
A 10 centimeter diameter circular loop of wire is located in a 1.25-T magnetic field. When the plane of the loop is perpendicular to the field lines, Find the magnetic flux through the loop at this angle
A 8.0-kg monkey climbs a uniform ladder with weight w = 1.37102 N and length L = 3.50 m as shown in the figure below. The ladder rests against the wall at an angle of θ = 53°.The upper and lower ends of the ladder rest on frictionless surfaces, by th..
A dog team pulls a sled on ice with a horizontal force of 300 N, covering a distance of 15 m in 5 seconds. The sled moves on the ice without friction. What is the change in the momentum of the sled during this event?
Suppose the cloud of atoms is cooled to one micro-Kelvin. Calculate the root mean square speed of the rubidium atoms. [The atoms are at such low density that they remain in a (metastable) gas phase].
A skydiver of 75 kg mass has a terminal velocity of 60m/s. At what speed is the resistive force on the skydiver half that when at terminal speed
A 8 kg box slides d = 4.2m down the frictionless ramp, after that collides with a spring whose spring constant is 250 N/m. angle is 30 degrees.
Objects A and B have the equal mass of 3.4 kilogram and are at their melting point, Find the latent heat of fusion for the substance from which each object is made
john is listening to a horn. he knows the frequency of the horn is 516.402 hz when both he and the horn are at rest. if
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