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A uniform 0.25-kilog thin rod that has an 80-centimeter length is free to rotate about a fixed horizontal axis perpendicular to and through one end ram of the rod. It is held horizontal and released. Instantly after it is released,
(a) Determine the acceleration of the center of the rod, and
(b) Find the initial acceleration of the free end of the rod?
(c) Calculate the speed of the center of mass of the rod when the rod is (momentarily) vertical?
A 30 kg child is sitting on the outer edge of a 100 kg carousel with a radius of 2.0 m. What is the moment of inertia of the carousel and child
A jet pilot takes his aircraft in a vertical loop, as seen in figure below. If the jet is moving at a speed of 1450 km/hr at the lowest point of the loop, Determine the minimum radius of the circle
The ends of a cylindrical steel rod are maintained at two different temperatures. The rod conducts heat from one end to the other at a rate of 10 J/s. At what rate would a steel rod twice as long and twice the diameter conduct heat between the same t..
The wavelength of an ocean wave
Unpolarized light incident through a polarizer passes through a second polarizer placed at an angle theta to the first. How much is theta
Five thousand joules of heat is put into a Carnot engine whosehot and cold reservoirs have temperatures of 540 and 200 K, How much heat is converted into work
A car accelerates uniformly from rest and reaches a speed of 22.1 m/s in 8.97 s.
What diameter has the tip of the second hand with 100mil/hr tangential speed? What diameter has the tip of the minute hand with 100mil/hr tangential?
a mass m1 3.1 kg rests on a frictionless table and connected by a massless string over a massless pulley to another
Jill of the jungle swings on a vine 6.5 m long. What is the tension in the vine if Jill, whose mass is 61kg, is moving at 2.4 m/s when the vine is vertical
A 38.00 kg girl is bouncing on a trampoline. All throughout a certain interval after she leaves the surface of trampoline, her kinetic energy decreases to 185J from 425J. How high does she rise all through this interval? Avoid air resistance.
A lamp (R = 145 ), an electric heater (R = 24 ), and a fan (R = 49 ) are connected in parallel across a 121 V line. What is the current in the lamp
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