Physics, 30.01.2020 01:03 afolmar2006
Achild is pushing a playground merry-go-round. the angle through which the merry-go-round has turned varies with time according to θ(t)=γt+βt3, where γ=0.400rad/s and β=0.0120rad/s3.part a calculate the angular velocity of the merry-go-round as a function of time. express your answer in radians per second in terms of γ, β, and t. ω(t) = rad/secpart part b what is the initial value ω0 of the angular velocity? express your answer in radians per second. ω0 = rad/spart c calculate the instantaneous value of the angular velocity ω(t) at time t=5.00s. express your answer in radians per second. ω(5.00) = rad/spart d calculate the average angular velocity ωav for the time interval t=0 to t=5.00 seconds. express your answer in radians per second. ωav = rad/s
Answers: 2
Physics, 22.06.2019 12:00
Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?
Answers: 3
Physics, 22.06.2019 12:00
Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?
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Physics, 22.06.2019 13:00
Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.
Answers: 1
Physics, 22.06.2019 18:30
Ben (55kg) is standing on very slippery ice when junior (25kg) bumps into him. junior was moving at a speed of 8 m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision. give the answer in m/s. describe the work you did to get the answer.
Answers: 1
Achild is pushing a playground merry-go-round. the angle through which the merry-go-round has turned...
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