If you measure the width of an outdoor barn with a steel tape on a very cold day, your measured width will be
A) a bit short.
B) a bit long.
C) the same as on an average-temperature day.
B) a bit long.
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Bulk Modulus: When the pressure applied to an unknown liquid is increased from 1.0 × 107 Pa to 5.5 × 107 Pa, the volume of the liquid decreases by 0.70%. Calculate the bulk modulus of the liquid.
Fill in the blank(s) with the appropriate word(s).
Measured ages of globular clusters suggests that the Universe is about
a. 1.4 billion years old. b. 14 billion years old. c. 140 billion years old.
Which is the longest time?
a) the time it takes for a photon to pass through the radiative zoneof the Sun b) the time it takes a photon to pass through the corona of the Sun c) one hour d) the time it takes a photon to pass from the photosphere of the Sun to the Earth e) the time it take light to traverse the convective zone of the Sun
Compared to ultraviolet waves, the frequency of infrared waves is
A) lower. B) the same. C) higher.