Answer:
A light bulb lightning up
Explanation:
At night, when that part of Earth is facing away from the Sun<span>, </span>space<span> looks </span>black<span>because there is no nearby bright source of light, like the </span>Sun<span>, to be scattered. </span>If<span> you were on the Moon, which has no atmosphere, the sky would be </span>black<span> both night and day.</span>
Answer:
B
8.5 km/h east
Explanation:
Relative velocity= Va -Vb
=10-1.5
=8.5 km/h east
ideal gas in ball assumed.
warmer = high pressure, ball deformed and stressed, could burst
cooler = low pressure, ball shrinks, could go soft.
ideal gas laws help calculate this
force goes as 1/d^2 ... (2d)^2 => 4d^2 ...
C) decrease by a factor of four