Two masses, MA and MB, with MB = 2MA, are released at the same time and allowed to fall straight down. Neglect air resistance. When we compare their kinetic energies after they have fallen for equal times, we find that
a. KB = KA.
b. KB = 2KA.
c. KB = 4KA.
d. KA = 2KB.
e. KA = 4KB.
B
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Pensacola, Florida lies at a latitude of 30 degrees north. Where is Polaris in its sky?
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a. 30 J b. 62 J c. 20 J d. 44 J e. 24 J
Transverse seismic body waves are known by the letter ______________
a. B b. P c. S d. T