A11 kg mass on a frictionless inclined surface is connected to a 2.1 kg mass. the pulley is massless and frictionless, and the connecting string is massless and does not stretch. the 2.1 kg mass is acted upon by an upward force of 6.6 n, and thus has a downward acceleration of only 3.6 m/s 2 . the acceleration of gravity is 9.8 m/s 2 . what is the tension in the connecting string?
Answers: 1
Physics, 22.06.2019 14:10, nikki4367
Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:
Answers: 3
Physics, 22.06.2019 16:50, fsugg9168
Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?
Answers: 2
A11 kg mass on a frictionless inclined surface is connected to a 2.1 kg mass. the pulley is massless...
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