Amagnetic field forms around a moving electric charge, resulting in a magnetic field.

which does this describe?

a.
how electric charges can be used to make current flow

b.
how electric charges can be used to create a magnetic field

c.
how a magnetic field can be used to generate an electric current

d.
how a magnetic field can be used to generate electrons

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.

What is special about a dc circuit ?

Aheavy piece of hanging sculpture is suspended by a90-cm-long, 5.0 g steel wire. when the wind blows hard, the wire hums at its fundamental frequency of 80hz. what is the mass of the sculpture?