Which set up correctly uses an electric current to produce a strong magnet? A: A steel rod that carries electricity makes the rod become a strong magnet.

B: The pieces of steel in a battery that stores electricity become a strong magnet.

C: Copper wires put next to pieces of steel make the steel become a strong magnet.

D: A steel rod wrapped in a current-carrying wire turns the rod into a strong magnet.

Which of the following is not a part of a wave? question 2 options: a: frequency b: refraction c: wavelength d: amplitude (whoever answers correctly first gets brainiest! ) ~kayla

What happens when a rubber rod is rubbed with a piece of fur?

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 740 n/m. it is initially at rest on an inclined plane that is at an angle of theta= 26 with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is uk = 0.17. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. the block's initial mechanical energy is 9.472 j.b. if the spring pushes the block up the incline, what distance l in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.