Kelly is driving a car with a mass of 800 kilograms in a south direction with a speed of 18 meters/second. dominic is driving a truck with a mass of 1500 kilograms with a velocity of 15 meters/second to the east. they undergo perfectly inelastic collision. what is the magnitude of the final momentum of both the truck and the car. 7.0 × 104 kilogram meters/second 3.2 × 104 kilogram meters/second 2.4 × 104 kilogram meters/second 3.7 × 104 kilogram meters/second 3.4 × 104 kilogram meters/second

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.

Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) layer of a precious metal, such as silver or gold. in essence the metal object is made the cathode of an electrolytic cell in which the precious metal cations are dissolved in aqueous solution. suppose a current of 480.ma is passed through an electroplating cell with an aqueous solution of agno3 in the cathode compartment for 46.0 seconds. calculate the mass of pure silver deposited on a metal object made into the cathode of the cell. round your answer to 3 significant digits. also, be sure your answer contains a unit symbol. ×10μ

In science and physics what is the standard unit of measure for speed?