Pleae Answe How can you make a magnet with electricity? *
10 points
Wrap a wire around a nail and pass electricity through the wire.
Spin a coil of wire inside a magnetic field or move a magnet inside a coil of wire.
Place two permanent magnets near each other.
Rub two magnets together.

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?

An athlete swings a ball, connected to the end of a chain, in a horizontal circle. the athlete is able to rotate the ball at the rate of 8.13 rev/s when the length of the chain is 0.600 m. when he increases the length to 0.900 m, he is able to rotate the ball only 6.04 rev/s. (a) which rate of rotation gives the greater speed for the ball? 6.04 rev/s 8.13 rev/s (b) what is the centripetal acceleration of the ball at 8.13 rev/s? m/s2 (c) what is the centripetal acceleration at 6.04 rev/s? m/s2

If jason ii needs 15 kw of power at 300 volts to operate, what amperage of current must flow through the cable?