4.A washing machine that weighs 1400 N must be put into a delivery truck bed that is 1.2 m off the ground. A worker uses a force of 450 N to push the machine up a ramp that is 4.3 m long. What is the efficiency of the inclined plane?

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

Global climatic patterns are changing because of the melting of polar ice caps. the melting of polar ice caps is an example of the interaction between the atmosphere and cryosphere cryosphere and geosphere hydrosphere and geosphere biosphere and cryosphere

What is the moment of inertia i of this assembly about the axis through which it is pivoted? express the moment of inertia in terms of mr