If the mass of an object is 15 g and the volume is 8.23 L, what is the density in the correct number of significant figures?

1.822600243x10^-3 g/ml

Explanation:

Density = mass / volume

             = 15 / 8230  (From L to ml because mass is in grams)

             = 1.822600243x10^-3 g/ml (^-3 means rasie to power -3)

if you already have the answer to (a), then just work out how many periods there are in 1 minute, and that's the answer to (c).

the force required to move the cart is divided by three or 33.33 n.