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A circular saw blade 0.250m in diameter starts from rest. In 7.50s , it reaches an angular velocity of 140rad/s with constant angular acceleration.
Part A Find the angular acceleration and the angle through which the blade has turned in this time.
A loudspeaker of mass 22.0 {rm kg} is suspended a distance of h = 1.60 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.90 {rm m}.
A photon of wavelength 4.28 x 10^-2 nm strikes a free electron and is scattered at an angle of 32.0 degrees from its original direction. find the energy gained by the electron
A person is riding a bicycle, and its wheels have an angular velocity of 11.5 rad/s. How much time does it take for the bike to come to rest
q1.an green hoop with mass mh 2.4 kg and radius rh 0.14 m hangs from a string that goes over a blue solid disk pulley
A 70-kg stunt pilot pulls out a drive while flying at 50 m/s. If he flies a circular path with a radius of 200 m, what force does his seat exert on him at the bottom of the path
A violinist is tuning the A string on her violin by listening for beats when this note is played simultaneously with a tuning fork of frequency 440 Hz. What was the frequency of the mistuned A string
A hydraulic jack is made with a small piston 1.1 cm in diameter that is used to move a large piston 5.3 cm in diameter. how heavy a load can he lift with the jack
During WWII some paratroopers landed in gliders instead of dropped by parachute. The gliders had no power of their own, Find the lift force provided by the glider's wings
A tube 1.16 m long is closed at one end. A stretched wire is placed near the open end. The wire is 0.355 m long and has a mass of 8.80 g. Find the tension in the wire
Two particles with masses 3m and 5m are moving toward each other along the x axis with the same initial speeds vi. Find the final speeds of the particles
A bowler throws a bowling ball of radius R = 11 cm down a lane. The ball slides on the lane with initial speed vcom,0 = 6.5 m/s and initial angular speed ?0 = 0. How far does the ball slide
A ray of light strikes the midpoint of one face of an equiangular (60°-60°-60°) glass prism (n = 1.5) at an angle of incidence of 32.5°. find the angles of reflection at the surfaces
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