A system absorbs 186 kj of heat and the surroundings do 110 kj of work on the system. what is the change in internal energy of the system? express the internal energy in kilojoules to three significant figures.

Electric current is the flow of which of the following through a wire? • electrons • protons • neutrons • protons and electrons

What is the efficiency of a machine that has work input of 40 joules and work output of 35 joules

An 1647 w toaster, a 1592 w electric frying pan, and a 81 w lamp are plugged into the same outlet in a 120-v circuit. (the three devices are in parallel when plugged into the same socket.). what current is drawn by the frying pan

Explain how faults, mountains, and islands are formed.

Factors that determine the type of magma are?

What is the phenomenon thats occours when two waves (blank) while traveling along the same medium

The acceleration of an object increases by the force applied to it and decreases based on it's mass.

Expresa en terminos de la unidad fundamental

What color does Indigo turn things?

Which equation expresses the conservation of mechanical energy in a system that involves kinetic energy, gravitational potential energy, and elastic potential energy?