Plz answer ! a platinum bar measures 5.0 cm long, 4.0 cm wide, and 1.5 cm thick. it has a mass of 750.0 grams. don't forget to find the volume of the bar (l x w x h). use the formula d=m/v calculate the density of the platinum bar (you need the volume first). enter your answer in the space provided.

The velocity of car is 80.0 miles per hour. what is the velocity of car in meters per second? (1 km -0.621 miles) m/s

Mutt and jeff are running along a path each pushing a cart loaded with rocks. if mutt's wagon has a mass two times greater than jeff's and they want to stay together, arriving at their destination at the same time, what must happen? a) jeff should slow down so mutt can catch up. b) mutt must use half as much force to push his cart. c) mutt must use twice as much force to push his cart. d) mutt and jeff will use the same force, but mutt will take bigger steps.

A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?