Which statement is incorrect? The gravitational force on an orbiting satellite due to the earth
a. aims toward the center of the earth
b. depends on the earth's mass
c. depends on the satellite's mass
d. depends on the distance between the earth and the satellite
e. none of the above
E
A - D are all true.
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What is the exosphere?
A) the lowest layer in the atmosphere B) the part of the atmosphere that absorbs optical light C) the part of the atmosphere that absorbs ultraviolet D) the part of the atmosphere in which the greenhouse effect is strongest E) the outermost, very low-density region of the atmosphere
When E and B are the amplitudes of the electric and magnetic fields in an electromagnetic wave in vacuum, the total average energy density in the wave is
A.
.B.
.C.
D.
.E.
.After reviewing the data from Procedures 5 and 6, in general how do you think the voltages across individual elements in a parallel circuit compare with the total voltage supplied to the circuit?
Light passes readily through a pair of Polaroids when their axes are
1) parallel. 2) perpendicular. 3) neither of these, and for a pair of Polaroids with axes at 45 degrees to each other 4) light will not pass. 5) light that passes is dimmer than for parallel Polaroids. 6) another Polaroid is necessary for any light to pass.