A technician examines different electrical devices to determine the one that is the most energy efficient. While conducting a test, he notes that one of these devices consumes 550 000j of energy and loses 315 000 j at the same time. What is the energy efficiency of this device?

This is a form of winter precipitation. it is frozen precipitation falling as ice pellets. snowflakes melt into raindrops as they pass through a thin layer of warmer air. the raindrops then refreeze into particles of ice when they fall into a layer of sub-freezing air near the surface of the earth. this precipitation is called a) hail. b) rain. c) sleet. d) snow.

In addition to gravity, what is the other predominant force that affects the motion of a pendulum?

Why does a collision with an airbag cause less damage than a collision with a steering wheel