PLZ PLZ SOMEONE DO THIS FOR ME ILL GIVE BRAINLIEST Layna and Aaron have made an electromagnet by coiling a copper wire around an iron nail, then connecting the wire to a battery, as seen in Figure 1. This causes electricity to flow through the coil, magnetizing the nail and creating a magnetic field.

Electromagnet diagram. A coil of wire is wrapped around an iron nail and connected to a battery.

QUESTION: Layna says that they can increase the strength of their electromagnet by wrapping more coils of wire around the iron nail. Aaron says that they can increase the strength of the electromagnet by connecting a different battery to the wire.

Who do you agree with? Use evidence from science class to explain your answer.

(Your response should be about 2-3 sentences)

An observer that stands still as the electron moves by him, will observe

Which type of microscope would allow the viewer to see ribosomes inside a cell?

During physical science, ms. greene challenged her students to produce an energy transformation. james and jill wrapped a 4-inch nail with a coil of fifty turns of wire. they connected one end of the coil to one terminal of a knife switch. they connected the other terminal of the knife switch to the battery. finally, they connected the end of the coil to the other terminal of the battery. james held the tip of a 1-inch nail near the flat end of the 4-inch nail. jill closed the knife switch quickly and then opened it. the 1-inch nail was pulled toward the 4-inch nail. what is the best explanation of why the nail moved? a) electrical energy was converted to mechanical energy in the 1-inch nail. b) the 4-inch nail became an electromagnet and the magnetic force attracted the 1-inch nail. c) the electric current in the 4-inch nail was converted to mechanical energy in the 1-inch nail. d) the 4-inch nail had a positive charge and the 1-inch nail had a negative charge. opposites attracted.