On the way out of the school parking lot on a Friday Mr. Cook, not paying attention, runs into the back of Mr. Cannon’s car. If Mr. Cook’s truck has a mass of 2000Kg, and is accelerating at 5m/s/s, with what force would he hit Mr. Cannon?

An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 ˚f and standard atmospheric pressure, what is the value of the mach number?

Which of these activities increases the amount of carbon in the atmosphere?

Why is a noble gas different from other elements?