Apencil is dropped, point down, into water. if the pencil is released from a height of 0.04 nm (measured from the point to the water level), how far will it dive? treat the pencil as a cylinder of radius 0.40 cm, length 20 cm, and mass 4.0 gm. ignore the frictional and inertial resistance of the water, but take into account the buoyant force. hint: draw a neat sketch in which all variables, etc, are well defined, and then, using an appropriate free body diagram, make use of newton's 2nd law and write the acceleration in the form a v (dvldy)- a 1a rule when f is a function of y
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Determine the maximum r-value of the polar equation r =3+3 cos 0
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Polly is pushing a box across the floor with a force of 30 n. the force of gravity is β8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?
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Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.
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Apencil is dropped, point down, into water. if the pencil is released from a height of 0.04 nm (meas...
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