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Two flywheels, one with moment of inertial 240kgm^2 and one with moment of inertial 150kgm^2 turn on the same shaft. The First wheel is fixed on the shaft, the second one is connected by a clutch, so that it can be made to turn either with the first or independently of it. Initially the first wheel is turning at 30rad/s. The second is at rest, the clutch is then operated, so that wheels turn together, what is the common angular speed.
Electric forces among two charged objects tend to be much stronger in magnitude than the attractive gravitational force between them. Two particles of masses 7.93 kg and 8.97 kg and charges 2.56 char16.png C and -4.01 char16.png C respectively are se..
A distant galaxy is simultaneously rotating and receding from the earth. As drawing shows, the galactic center is receding from the earth at a relative speed of uG = 1.8 x 10^6 m/s.
A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with a velocity of 4.00 m/s, and her takeoff point is 1.30 m above the pool.
A log floats in a river with 1/5 of its volume above the water. Density of water is 1000 kg/m, how much of the volume is now above the water
Two thin lenses with a focal length of magnitude 10 cm, the first diverging and the second converging, are located 7.88cm apart. How far from this first lens is the final image formed
monochromatic light falls on a screen 1.90 m from two slits separated by 2.07 mm. the first- and second-order bright
A small rocket is fired in a test range. It rises high into the air and soon runs out of fuel. What is the maximum altitude of the rocket
A 17-kg suitcase falls from a hot-air balloon that is floating at a height of 333 m above the surface of Earth. The suitcase has an initial speed of 0 m/s however it reaches a speed of 26 m/s just before it hits the ground. Compute the percentage of ..
A car traveling at 30 m/s suddenly encounters a 20o hill. The car is coasting with no power input. determine how far up the hill will the car go before it stops
One of the harmonics of a column of air open at one end and closed at the other has a frequency of 448 Hz, What is the fundamental frequency of the air column
The mass of the airplane is m = 9010 kg. The plane travels at a constant speed around a circular path of radius R = 8.67 miles, What is the magnitude of the lift force acting on the plane
A roach that runs for its life because you try to hit it with your physics book runs off the horizontal tabletop with a speed of 0.685 m/s, What will be the vertical component of the roach's velocity just before it hits the floor
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