Which device converts kinetic energy into electrical energy?

an electric generator

an electric motor

a step-down transformer

a step-up transformer

A laptop can convert 400J of electrical energy into a 240J of light and sound. What is the efficiency? Where does the rest of the energy go?

Is our hands positive or negatively charged.

What is the purpose of a branch circuit in your home?

What is the key variable for calculating potential energy

A circular loop of wire is held in a uniform magnetic field, with the plane of the loop perpendicular to the field lines.

When titanium bonds with oxygen, the ionic compound that forms has the chemical formula Ti2O3 and consists of Ti3 + ions and O2 - ions. Explain why the compound has this chemical formula.

If the weather becomes stormy for a short time and then becomes colder which type of front has most likely passed

True or false the molecular formula for ibuprofen is the same as the empirical formula

a car moves from a to b at a speed of 50km per hr and comes back from b to a at a speed of 30km per hour. find its average speed during the journey

In which of the following can you not find plasma