Suppose you have a helium-filled weather balloon above the house. As a storm leaves, the atmospheric pressure rises. Assuming the air temperature is the same, the volume of the balloon will ________.
What will be an ideal response?
decrease
shrink
lessen
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Absorption lines due to interstellar gas
a. are wider than the lines from stars because the gas is hotter than most stars. b. are more narrow than the lines from stars because the gas has a lower pressure than stars. c. indicate that the interstellar medium contains dust. d. indicate that the interstellar medium is expanding away from the sun. e. none of the above
William Herschel thought he had found a comet when he spotted the green disk of:
A) Triton. B) Uranus. C) Neptune. D) Titania. E) Oberon.
The light-gathering power of a telescope increases as the size of the objective increases
Indicate whether the statement is true or false
Latent Heats: If you add 700 kJ of heat to 700 g of water originally at 70.0°C, how much water is left in the container? The latent heat of vaporization of water is 22.6 × 105 J/kg, and its specific heat capacity is 4186 J/kg ? K.
A. 429 g B. 258 g C. 340 g D. 600 g E. none