You are building a race car. your goal is to have a car that can go from 0 miles per hour to 80 miles per hour in 2 seconds. you are focusing on the car's

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

An object weigh 40n in air ,weigh 20n when submerged in water,and 30n when submerged in a liquid of unknown liquid density.what is the density of unknown of liquid?

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?