When a fan is turned on it changes electrical energy into what?

Chemical testing of water

A 20.5 kg box initially at rest is pushed 5.93 m along a rough, horizontal floor with a constant applied horizontal force of 95.3501 N. If the coefficient of friction between box and floor is 0.389, find the work done by the applied force.

A 340 0hm resistor and a 550 ohm resistor are connected in parallel. this group is then connected in series with a 180 ohm and a 120 ohm resistor. what is the equivalent resistance of the circuit?

Which of the following is not true for atoms? They are made up of elements. They are the building blocks of matter. They contain a nucleus. They are made of protons, neutrons, and electrons.

When you step on the accelerator to increase the speed of your car, the force that accelerates the car is: A. the force of your foot on the accelerator B. the force of friction of the road on the tires C. the force of the engine on the drive shaft D.

The larger the push, the larger the change in velocity. This is an example of Newton's Second Law of Motion which states that the acceleration an object experiences is

Dr. Halite combined sodium metal with chlorine gas to make sodium chloride (table salt). the chemical reaction used up all of the metal and all of the gas. If Dr.

Which planet, when viewed through a telescope, appears as a reddish ball interrupted by some permanent dark regions that change intensity?

A wave has a wavelength of 10 mm and a frequency of 5 hertz. What is its speed? a. 50 mm/s b. 50 hertz's c. 2 mms d. 0 0.50 mms

Suppose you illuminate two thin slits by monochromatic coherent light in air and find that they produce their first interference minima at / pm 35.09 degrees on either side of the central bright spot.