If earth had twice its present mass, but the same radius, the force of gravity would be:

a) twice as big b) four times as big c) half as big d) the same

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation:

which three statements are true about all alloys?