Aoccurs when the moon moves directly between the sun and earth and throws a shadow on earth.
a.) lunar eclipse
b.) waxing gibbous
c.) waning gibbous
d. solar eclipse

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

On a mild saturday morning while people are working inside, the furnace keeps the temperature inside the building at 23degreesc. at noon the furnace is turned off, and the people go home. the temperature outside is a constant 16degreesc for the rest of the afternoon. if the time constant for the building is 3 hr, when will the temperature inside the building reach 18degreesc? if some windows are left open and the time constant drops to 2 hr, when will the temperature inside reach 18degreesc?