2. A car and a semi truck are sitting 500 meters apart from each other. The car has a mass of 250 kg and the semi truck has an unknown mass. If the magnitude of the
gravitational force between these two objects is 2.0 x 10-9 N, then what is the mass
of the semi truck?

ill do it for 100, also this isnt 80 its 40

correct it is c.) b b

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form