The distribution of the dark matter in a spiral galaxy is

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

What kind of simple machine is a catapult?

Pressure is a measure of force per unit area or p=f/ap=f/a. a student is checking the amount of pressure their car exerts upon the road. the car weighs 22 tons ( us short ton ). the student finds the dimensions of each tire's footprint on the road is 12.5 cm x 16.5 cm. in pounds per square inch (psi), what is the total pressure the car exerts upon the road?