The moment of inertia about the x axis of the parallelogram in Problem 5.3 is:

(A) bh3/3
(B) 2bh3/3
(C) bh3/4
(D) bh3/2


(A) bh3/3

Physics & Space Science

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The dominant trigger of star formation in our Galaxy is supernova explosions

Indicate whether the statement is true or false

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The fact that the strength of gravity decreases with distance means the force of gravity exerted by one object on another (e.g., the Earth and Moon) is greater on the near side than the far side. This effect is commonly referred to as a

A) tidal force B) differential force C) distortive force D) tractive force

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A gasoline engine absorbs 2500 J of heat and performs 1000 J of mechanical work in each cycle. The amount of heat expelled in each cycle is

A. 1000 J B. 1500 J C. 2000 J D. 500 J E. 3000 J

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Starting outside the region with the magnetic field, a single square coil of wire enters, moves across, and then leaves the region with a uniform magnetic field

image perpendicular to the page so that the graph shown below represents the induced emf. The loop moves at constant velocity1. As seen from above, a counterclockwise emf is regarded as positive. In which direction did the loop move over the plane of the page?





image



a.

The loop moved from bottom to top.



b.

The loop moved from top to bottom.



c.

The loop moved from left to right.



d.

The loop moved from right to left.



e.

All of these directions of motion will produce the graph of emf vs t.

Physics & Space Science