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A thin rod has a length of 0.684 m and rotates in a circle on a frictionless tabletop. The axis is perpendicular to the length of the rod at one of its ends. The rod has an angular velocity of 0.937 rad/s and a moment of inertia of 1.09 x 10-3 kg·m2. A bug standing on the axis decides to crawl out to the other end of the rod. When the bug (whose mass is 5 x 10-3 kg) gets where it's going, what is the change in the angular velocity of the rod?
A stunt pilot with mass of 80 kg performs a vertical circular dive of radius 800 m. What forces are acting on the pilot
A loud speaker diaphragm is producing a sound for 2.5s by moving back and forth in simple harmonic motion. How many times does the diaphragm move back and forth
A car owner forgets to turn off the headlights of his car while it is parked in his garage. how long will it take the battery to completely discharge
what time delay Delta t is necessary. A boxcar of mass 600 tons at rest becomes uncoupled on a 5.00 grade. If the track is considered to be frictionless, what speed does the boxcar have after 15 seconds.
You may have noticed a type of track lighting in museums or stores with modern decor called "cable track lighting." Bare power supply wires, What is the force between the long wires
The ice has a thickness of 4.75 10-4 m, and the windshield has an area of 1.25 m2. The density of ice is 917 kg/m3. Explain how much heat is required to melt the ice?
Illustrate w hat angular speed (in revolutions per minute) is needed for a centrifuge to produce an acceleration of 720 times the gravitational acceleration 9.8 m/s2 at a radius of 9.95 cm ?
A seed shoots out from the pod with the speed of 2.6m/s but with a direction of motion 30° below the horizontal. The seed pod is initially 1.1m above the ground.
A simple camera telephoto lens consists of two lenses. The objective lens has a focal length f1 = 38.8 cm. Precisely 35.7 cm behind this lens is a concave lens with the focal length f2 = -10.3 cm. The object to be photographed is 3.97 m in front o..
A(n) 51.6 cm length of wire when used as a resistor has a resistance of 0.00668 ?. The ends of the wire are connected to form a circular loop, At what rate is thermal energy generated in the wire
A point charge +q of mass m, (m,+q) is placed at point P along the x-axis where V_r(infinity) is known. Find the expression for the new velocity at the second point
The potter can stop the wheel in 7.0 s by pressing a wet rag against the rim and exerting a radially inward force of 68 N. Find out the effective coefficient of kinetic friction between the wheel and the wet rag.
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