Multiple Choice
A balloon inflated with helium is able to float toward the ceiling because
A) the weight of the balloon is greater than the weight of the air displaced by the balloon.
B) the density of the gas inside the balloon is greater than the density of the atmosphere.
C) the pressure of the gas inside the balloon is less than the atmospheric pressure.
D) the pressure of the gas inside the balloon is greater than the atmospheric pressure.
E) the balloon and the gas it contains weigh less than the air displaced by the balloon.
Correct Answer:
Verified
Correct Answer:
Verified
Q38: An ant and an elephant are walking
Q39: Archimedes' Principle states that...<br>A) an object immersed
Q40: Atmospheric pressure decreases as one moves to
Q41: According to Bernoulli's equation, the pressure in
Q42: In U.S. customary units, air pressure is
Q44: Pascal's Principle states that an increase of
Q45: A silver dollar, a quarter, and a
Q46: An iceberg is floating in the ocean
Q47: If a barometer were to be made
Q48: The density of aluminum is 2700 kg/m<sup>3</sup>.