The overall dimming of starlight passing through dust clouds is called ________
Fill in the blank(s) with correct word
extinction
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A 170. pound halfback is tackled by a 245. pound guard. Each, of course, exerts a force on the other. Which of the players exerts the LARGER force on the other?
What will be an ideal response?
At room temperature, a typical person loses energy to the surroundings at the rate of 62.0 W
If this energy loss has to be made up by an equivalent food intake, how many Calories does this person need to consume every day just to make up this heat loss? A) 1040 Calories B) 1160 Calories C) 1280 Calories D) 1340 Calories E) 1400 Calories
From a latitude of 60ºN during the winter, the Sun will
A) spend most of each day below the horizon. B) spend most of each day above the horizon. C) never be seen above the horizon. D) spend a few weeks continuously below the horizon.
What is one relationship of superconductors to magnets?
a. Superconductors draw in their own magnetic fields and thus attract magnets. b. Superconductors affect nearby magnetic fields. c. Superconductors expel their own magnetic fields and thus repel magnets. d. Superconductors have no more relation to magnetic fields than ordinary conductors. e. Superconductors can be used to create magnetic monopoles.