A12404.7 kg railroad car travels alone on a level frictionless track with a constant speed of 11.6 m/s. a 5579.1 kg load, initially at rest, is dropped onto the car. what will be the car's new speed

Acube has a volume of 2011 cubic inches. what is the angle measure between a side of a cube and its interior diagonal?

Sara is creating an experiment. her hypothesis states the following. if i increase the air in my tires, then i will get better gas mileage. if this is her hypothesis what column titles do we need in our date table? a. air pressure in tire (psi) and gas mileage (mph) b. air pressure in the atmosphere (psi) and gas mileage (mph) c. miles (m) and gallons per mile (g) d. old battery and new battery

John throws .4 kg ball with velocity of 18 m/s. hits .2 kg bottle and bottle flies 25 m/s. how fast is ball traveling after hitting the bottle?