The unit for kinetic energy is the:
a. impulse.
b. newton.
c. joule.
d. watt.
e. kilogram.
c
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Sound waves in space
A) do not exist. B) travel so slowly that they are unnoticeable. C) travel much faster than sound on Earth but have such low density that they are inaudible. D) travel much faster than sound on Earth and are therefore very loud. E) can travel through the halo but not the disk of the galaxy.
You are removing a pie from a 350°F oven, and while you need to protect your hands from the pie pan, the backs of your hands and your wrists and forearms are unprotected, yet they don't get burned. Why?
What will be an ideal response?
A measurement of 0.00254 g is the same as
a. 0.254 mg. b. 25.4 mg. c. 254 mg. d. 2.54 mg. e. none of these.
Short-period comets, such as Halley's comet, are believed to come from ______________
a. the Kuiper Belt b. the Oort cloud c. the asteroid belt d. Earth