What is the requirement for a core to be used in an electromagnet? it must be able to be increased. it cannot be magnetized. it must be an ion. it must be able to be magnetized.

Awind turbine is initially spinning at a constant angular speed. as the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.173 rad/s2. after making 2870 revolutions, its angular speed is 132 rad/s. (a) what is the initial angular velocity of the turbine? (b) how much time elapses while the turbine is speeding up?

How have the competing explanations' experiments on atoms affected the development of the atomic model?

What makes thermal imaging cameras useful? they can detect differences in color. they can detect differences in wave speeds. they can detect differences in temperature. they can detect mechanical waves.