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Water drives a waterwheel (or turbine) of radius R = 3.0 m as shown in the figure. The water enters at a speed v1 = 6.5m/s and exits from the waterwheel at a speed v2 = 3.0 m/s.
(a) If 165 kg of water passes through per second, what is the rate at which the water delivers angular momentum to the waterwheel?
(b) What is the torque the water applies to the waterwheel?
(c) If the water causes the waterwheel to make one revolution every 5.5 s, how much power is delivered to the wheel?
If so evaluate their acceleraton and the tension in the string. If not determine the sum of the magnitudes of the forces of friction acting on the blocks.
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An unmarked police car, travelling a constant 94 km/h, is passed by the speeder travelling 153 km/h. precisely 0.70 s after the speeder passes, policeman steps on the accelerator. If the police car's acceleration is 2.30 m/s^2, how much time elapses ..
A particle moves along the x-axis. Its position varies with time according to the expression x(t) = -4t + 2t2, where x is in meters and t is in seconds. a) Determine the displacement of the particle in the two time intervals t = 0 to t = 1 s and t..
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