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A 10-kg disk-shaped flywheel of radius 9.0 cmrotates with a rotational speed of 320 rad/s.
-Determine the rotational momentum of the flywheel.
-With what magnitude rotational speed must a 10-kg solid sphere of 9.0 cm radius rotate to have the same rotational momentum as the flywheel?
Two teams of nine members each engage in a tug of war. what is the tension in the section of rope between the teams
A block of mass 2.50 kg is pushed 2.60 m along a frictionless horizontal table by aconstant 16.0 N force directed 25.0°below the horizontal. Determine the work done by the net force on the block
A sound wave traveling at 341 m/s is emittedby foghorn of a tugboat. An echo is heard2.40 s later.How far away is the reflecting object? reply in units of m.
a gun has a barrel velocity of 400 meters per second. at what angle would the gun have to be fired for the bullet to
A proton is fired from far away toward the nucleus of a mercury atom. Mercury is element number 80, and the diameter of the nucleus is 14.0 fm. find its closest approach to the surface of the nucleus
A 66-N %u22C5 m torque acts on a wheel with a moment of inertia 175 kg %u22C5 m2. how long will it take the wheel to make one revolution?
a uniform beam of length l and mass m 1.8kg is at rest on two scales. a uniform block with mass m2.7 kg is at rest on
A car drives straight off the edge of a cliff that is 64-m high. The police at the scene of the accident note that the point of impact is 110-m from the base of the cliff. How fast was the car travelling while it went over the cliff.
Light rays in a material with index of refraction 1.29 can undergo total internal reflection when they strike the interface with another material at a critical angle of incidence. Find this material\'s index of refraction
The intensity of the sunlight that reaches Earth's upper atmosphere is approximately 1410 W/m2. What is the average energy density
An object has an initial velocity of 7.4 m/s. The object accelerates at a constant rate of 3.89 m/s2 for 2.8 seconds. What is the displacement of the object
How long is the image of a metrestick formed by a plane mirror? (a) one metre (b)less than one.
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