Two cylinders are in contact along an inclined plane. The upper cylinder (weight is 2.5W) rests against the lower cylinder (weight W), and both are supported by a wall where the contact force is N1. Assume that all friction forces are negligible. An expression for contact force N1 in terms of load variable W is:
(A) 1.75W
(B) 3.5W
(C) 1.57W
(D) 2.01W
(D) 2.01W
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Sort each statement below into the appropriate bin based on whether it is something that scientists knew about Pluto or its moon Charon before the New Horizons flyby, is something learned as a result of the New Horizons flyby, or is something that seems possible from the New Horizons mission but for which we'll need additional data to establish it with certainty.
What will be an ideal response?
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When you hold one end of a solid rod in a fire, the other end becomes hot because of heat convection
a. True b. False Indicate whether the statement is true or false
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a. Both are zero. c. Only the linear displacement is zero. b. Only the angular displacement is zero. d. Neither is zero.