In an experiment, which variable do you change

Suppose the conducting wire (with resistance R) was replace with one of the same material but has its dimension doubled (the length and the radius having twice their original value.

Find the rotational inertia of a cylinder. Mass is 2.0kg, radius. 21m

Static cling makes your clothes stick together. what causes this to happen? 1. friction created by tumbling clothes 2. the nature of the material 3. external forces to the clothes 4. forces of nature

Which of these describes how heat is transferred by convection? A.) Warm air rises and takes heat with it; eventually it cools and sinks. B.) Air molecules touch the warm ground; heating them up. C.

which of the following are good conductors under normal conditions? A. Penny B. copper wire C. a dime D. plastic E. aluminum foil F. water

Function of a battery

When an electric current runs through a wire, a magnetic field is induced ... O Around the wire O Parallel to the wire O Under the wire O Through the wire

A wheel of diameter 8.0 cm has a cord of length 6.0 m wound around its periphery. Starting from rest, the wheel is given a constant angular acceleration of 3.0 rad/s2. How long will it take the cord to unwind?

An extensive continuous mass of ice covering a continental scale is known as

Dan deposits $400 into an account that pays simple interest at a rate of 4% per year. How much interest will he be paid in the first 3 years?