How much work does the crane do
A crane lifts a 425 kg steel beam vertically upward a distance of 78 m. How much work does the crane do on the beam if the beam accelerates upward at 1.8 m/s^2? Neglect frictional forces.
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A 6 g object going 90.0 cm/s at time zero has a constant acceleration of -25 cm/s 2. How far did the object travel in the six seconds.
When the first team uses its GPS to check the position of the second team, what does it give for the second team's (a) distance from them and (b) direction, measured from due east?
A 3.10-m-long, 300 steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 73.0 construction worker stands at the far end of the beam. What is the magnitude of the torque abo
A current of 29.0 mA is maintained in a single circular loop with a circumference of 3.20 m. A magnetic field of 0.320 T is directed parallel to the plane of the loop. What is the magnitude of the torque exerted by the magnetic field on the loop?
A certain string just breaks when it is under 25 N of tension. A boy uses this string to whirl a 0.75-kg stone in a horizontal circle of radius 2.0 m. The boy continuously increases the speed of the stone. At approximately what speed will the stri
The lantent heat of fusion for ice is 80 Cal/g and the specific heat of water is 1.0 cal/g/c. how much heat will the ice have yo absorb from the water to melt the ice?
A soccer player applies a force of 60.5 N to a soccer ball while kicking it. If the ball has a mass of 0.42 kg, what is the acceleration of the soccer ball?
To keep from falling, you slide your right foot out toward the rear of the train. Explain in terms of torque how this actions keeps you from falling over.
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