How does the heating element of a portable electric heater work

What is power? Question options: Power is the ability to do work. Power is the rate at which work is done. Power is the amount of work that is done. Power is the product of force applied that displaces an object.

What are the dimensions of the rectangle

Explain whether the temperature of a substance must increase when thermal energy is added to the substance

If the distance between two objects is decreased to one fourth the original distance, what happens to the force?

Which of the following statements are true concerning the reflection of light? Check all that apply. a. The angle of incidence is equal to the angle of reflection only when a ray of light strikes a plane mirror. b.

If element X has 17 protons, how many electrons does it have?

A 2.0-kilogram laboratory cart is sliding across a horizontal frictionless surface at a constant velocity of 4.0 meters per second east. What will be the cart's velocity after a 6.0-newton westward force acts on it for 2.

A boat floats with 25% of its volume under water. a. What is the boatâs density? b. If the boat was made from 500 kg of metal, what is the volume of the boat? (Assume the air in the boat has negligible mass and density) c.

Why does each mineral have their own property, different from every other mineral?

Earth's tallest mountain ranges are found at plate boundaries