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A merry-go-round starts from rest and reaches the angular speed of 4 rpm in the first two minutes. What would be the angular acceleration of the merry-go-round in rpm/min.
A truck travels beneath an airplane that is moving 190 km/h at an angle of 26? to the ground.
A wheel 65 cm in diameter accelerates uniformly from 230 rpm to 355 rpm in 7s. How far will a point on the edge of the wheel have traveled in this time.
The current supplied by a battery in a portable device is typically 0.131 A. Find the number of electrons passing through the device
A basketball star covers 2.6 m horizontally in a jump to dunk the ball. His motion through space can be modelled precisely as that of a particle at his center of mass. His center of mass is at elevation 1.02m when he leaves the floor. It reaches a..
A hydrogen atom in the ground state absorbs a 13.06eV photon. find the wavelength of the photon emitted in this quantum jump
A 6.00 kg mass is located at (2.00m, 2.00m, 2.00m) and a 5.00 kg mass is located at (-1.00m, 3.00m, -2.00 m). find the moment of inertia of this system
Speedboat A negotiates a curve whose radius is 198 m. Speedboat B negotiates a curve whose radius is 290 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
A diffraction grating of 6000 lines/cm is illuminated by monochromatic light. How far from the central maximum is the first order maximum
Two vectors A and B have the similar magnitude of 100 N (they represent forces of equal strength). What is the magnitude of the resultant vector of A and B if they are parallel and pointing in opposite directions.
a 70 kg hockey player sliding freely on his knees on horizontal icy surface with velocity m/s. find the velocity of the player after he catches the puck
Small telescopes are often advertised as "200 power" or "magnifies 200 times." As someone knowledgeable about astronomical telescopes, how would you progress such advertisements.
How many kilograms of water at 100.0 C could be converted to steam by the addition of 1.13 x 10^7 joules of thermal energy.
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