A line of equal longitude is called a

a. meridian.
b. zone.
c. circle.
d. parallel.


a

Physics & Space Science

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

image perpendicular to the page. The loop moves at constant velocity 1 . As seen from above, a counterclockwise emf is regarded as positive. Roger claims that the graph shown below represents the induced emf. Martin says he's wrong. In which direction did the loop move over the plane of the page, or is Martin correct?



image



a.

Roger is correct: the loop moved from bottom to top.



b.

Roger is correct: the loop moved from top to bottom.



c.

Roger is correct: the loop moved from left to right.



d.

Roger is correct: the loop moved from right to left.



e.

Martin is correct: none of these directions of motion will produce the graph of emf vs t.

Physics & Space Science

One of the first tests of the general theory of relativity was the ____

a. description of the orbit of the moon b. determination of the speed of light as a constant c. change in mass of a particle moving at a high speed d. demonstration of a hammer and a feather falling at the same rate on the moon e. determination of the rate of advance of the perihelion of Mercury's orbit

Physics & Space Science

The total energy radiated by a blackbody depends on

A) the square of its temperature. B) the fourth power of its temperature. C) the fourth root of its temperature. D) the square root of its temperature. E) the cube of its temperature.

Physics & Space Science

A moon that goes inside the Roche Limit will

A) get heated by the strong magnetic fields. B) collide with a major satellite. C) escape its planet's gravity. D) be torn apart by the planet's tidal forces. E) become a planet.

Physics & Space Science