PLEASE HELP QUICK In the lab, you work with different concentrations of hydrochloric acid. Which of these statements would BEST describe the results you would see if you were using a conductivity apparatus (measure of the amount of electricity that is able to flow) in each of the different acid concentrations?

The light bulb would not burn as acids do not conduct electricity.

The bulb would burn the same in all concentrations.

The light bulb would burn brightest in the most diluted acid.

The light bulb would burn brightest in the most concentrated acid.

Aforce of 240.0 n causes an object to accelerate at 3.2 m/s2. what is the mass of the object?

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.

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.