Plane A is flying at 600 mph in the northeast direction relative to the Earth. Plane B is flying at 500 mph in the north direction relative to the Earth. What is the direction of motion of Plane B as observed from Plane A?
a. 52.5° N of E
c. 37.5° N of W
b. 48.2° N of W
d. 10.1° N of W
D
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An innovative physics professor conducts laboratory exercises in the college swimming pool. Suppose that one exercise was the measurement of the degree of polarization by bouncing laser light off a surface of a crystal. A laser bounced off the crystal surface is found to be perfectly polarized when the angle of incidence of the laser beam is 57 degrees from the vertical. What is the index of refraction of the crystal? It will help to recall that the index of refraction of water is 1.33.
A. 1.17 B. 1.12 C. 1.54 D. 2.05
An organism with an Encephalization Quotient (EQ) of 1 is expected to be of
A) above-average intelligence B) average intelligence C) the lowest possible intelligence D) below-average intelligence
Compare and contrast stars on the upper left and lower right of the main sequence
What will be an ideal response?
Astronomers believe that many satellites of the Jovian planets were ________.
A. formed by collisions with other objects B. formed by fission C. formed from planetesimals orbiting the growing planet and accreting into larger bodies D. formed elsewhere in the Solar System and were later captured by Jupiter's gravitational pull