An appliance requires 100 joules of energy and gives out 50 joules of energy. What is the percent efficiency? Please show work 15 points

The mantle is made up of which structural zones?

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?

In which of the following is positive work done by a person on a suitcase