A large and a small person wish to parachute at equal terminal velocities. The larger person should
A) get a larger parachute.
B) jump lightly.
C) pull upward on the supporting strands to decrease the downward net force.
D) jump first from the plane.
Answer: A
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Through the year, the Sun moves eastward among the stars following a line called the _____, the apparent path of the Sun among the stars
A) zenith B) nadir C) ecliptic D) zodiac
The ____ of an object depends on the diameter of the object and the distance to the object
a. apparent brightness b. apparent magnitude c. zenith d. angular diameter e. color
An atom that absorbs a certain amount of energy can then emit
A) only a photon of that energy. B) a photon of any energy. C) a photon of the same or higher energy. D) a photon of the same or lower energy.
When soup gets cold, it often tastes greasy. This "greasy" taste seems to be associated with oil spreading out all over the surface of the soup, instead of staying in little globules. This is readily explained in terms of
A) the Bernoulli effect. B) Archimedes Principle. C) Pascal's Principle. D) the decrease in the surface tension of water with increasing temperature. E) the increase in the surface tension of water with increasing temperature.