Why do your ears pop when you ascend to higher altitudes? Explain
What will be an ideal response?
Answer: The air pressure at higher altitudes is less than at the surface. It takes time for your body to adjust to this new pressure, so the air inside your inner ear pushes outward more than the atmosphere pushes inward, giving you that popping feeling.
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A rock weighs 30 N on Earth and another rock weighs 30 N on the Moon. Which rock has the greater mass?
A) the one on Earth B) the one on the Moon C) They have the same mass. D) not enough information
State Newton's 2nd law in your own words
What will be an ideal response?
Neutrinos can move faster than c, the speed of light, as was discovered in SN1987A in 1987
Indicate whether the statement is true or false
The use of fiberglass insulation in the outer walls of a building is intended to minimize heat transfer through the wall by what process?
a. conduction b. radiation c. convection d. vaporization