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A horse pulls a cart on a level road with a force of 140.0 Newton at angle of 25.0 degree with respect to the horizontal. The cart moves along at a speed of 8.8 km/hr. Compute how much work does the horse do in 12.6 minute?
A standard 35mm slide measures 24mm by 36mm. Suppose aslide projector produces a 60cm by 90cm image of the slide on a screen. What is the distance between the slide and the screen
Explain how does a magnitude of the electrical force between a pair of charged particles change when they are brought to half their original distance of seperation?
A bucket filled with water exerting a force of 529N is hanging from a rope that is wound around a 0.05 m radius stationary cylinder. If cylinder does not rotate and the bucket hangs straight down, what is the magnitude of torque the bucket produce..
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 54 dB by an observer 10 km away. Treat the horn as a point source and neglect any absorption of sound by the air. What is the average power generated..
The best leaper in the animal kingdom is the puma, With what speed must the animal leave the ground to reach that height
You (height of your eyes above the water, 1.75 \rm m ) are standing 2.00 \rm m from the edge of a 2.50-\rm m-deep swimming pool. How far from the side of the pool is your cell phone
a a bullet m 0.0230 kg is fired with a speed of 99.00 ms and hits a block m 2.60 kg supported by two light strings
A heat engine absorbs Qh = 3385 J of heat from a reservoir at Th = 650ºC and rejects Qc = 2660 J to a reservoir at Th = 325ºC. What is its efficiency of the heat engine
An iron heating coil for a burner on an electric range runs off a 240V circuit and produces 100 Watts of heat. Given a length of 1.2 m for the coil, find the diameter of the coil
A block of mass 20kg is dropped into water. What force should be applied to pull it to the surface if its volume is 0.001m^3? Density of water is 1000.0kg/m^3
Jeff of the Jungle swings on a 7.6- vine that initially makes an angle of 47 with the vertical. If Jeff starts at rest and has a mass of 88 , illustrate what is the tension in the vine at the lowest point of the swing?
An electrical load operates at 240 V rms. The load absorbs an average power of 8 kW at a lagging power factor of 0.8. Calculate the complex power of the load
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