It takes 63 W to power a ceiling fan. The energy output of the fan is 50 W. Calculate the efficiency of the fan. Round your answer to the nearest percentage. %

How far does a ca4 go

Two equal mass carts approach each other with velocities equal in magnitude but opposite in direction. Friction can be neglected. If the carts collide completely inelastically, what will be the final velocity of the combined system?

Which option is the most accurate description of speed? a. the ball rolled down the hill in five seconds to reach the marker. b. the ball rolled down the five meter hill in five seconds. c.

When two voltages are in-phase, they have the same frequency, and there is no time displacement between them. Both voltages cross the baseline at the same time, going in the same direction. True / False.

Using the word "more" to mean "I want another cookie" is an example of a (n) :

If a force of 40 newtons moves a cart a distance of 9 meters, the work done is Nm. If the same force moves the same cart three times that distance, the work done is Nm. NextReset

What is the critical angle c for total internal reflection if the material is clear acrylic, with a refractive index of 1.5?

What is happening if energy input remains constant and voltage remains the same in a circuit, but the current decreases? A. The resistance has increased. B. The volts have decreased. C. The power has increased.

The velocity - time graph of a ball of mass 25g moving on road is as given below: (a) How much force does the road exert on the ball to bring it to rest? (b) What is the direction of the force exerted by the road?

A spring required a force of 5.0 n to compress it 0.1 m. How much work is required to stretch the spring 0.4 m?