The greatest source of heat loss in a new home is from the ________
a. roof b. walls c. floor d. windows e. infiltration
d
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A glass rod is rubbed with nylon. The rod is then brought close to the metal knob of an electroscope. A person's finger briefly touches the knob on the far side and is then removed. After the rod is removed the charge on the electroscope will be ________.
Fill in the blank(s) with the appropriate word(s).
The acceleration of an object does not have to be in the same direction as the net force applied to it
Indicate whether the statement is true or false
What is the surface temperature of a star, given that its radiation peak occurs at a frequency of 1.06 × 1015 Hz?
A) 17,000 K B) 14,500 K C) 19,000 K D) 20,400 K E) 18,000 K
Chunks of rock and metal that orbit the Sun but are much smaller than the planets are referred to as
A) comets B) dwarf planets C) meteors D) asteroids