When a wire with a current is placed in a magnetic field,
a. electrical energy is transformed into mechanical energy.
b. mechanical energy is transformed into electrical energy.
c. the wire becomes a permanent magnet.
d. the current stops

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents

Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline