Answers: 2
Physics, 22.06.2019 00:00
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.
Answers: 1
Physics, 22.06.2019 18:50
What accounts for an increase in the temperature of a gas that is kept at constant volume? a. energy has been removed as heat from the gas. b. energy has been added as heat to the gas. c. energy has been removed as work done by the gas. d. energy has been added as work done by the gas.
Answers: 2
Physics, 22.06.2019 22:00
Which statement best explains why the overall charge on an atom is zero?
Answers: 1
Name the type of reproduction process as shown in Fig 1 and Fig 2. State one point of difference bet...
Mathematics, 17.09.2020 08:01
Chemistry, 17.09.2020 08:01
Mathematics, 17.09.2020 08:01
Mathematics, 17.09.2020 08:01
Mathematics, 17.09.2020 08:01
Mathematics, 17.09.2020 08:01
Mathematics, 17.09.2020 08:01
Mathematics, 17.09.2020 08:01
History, 17.09.2020 08:01
Mathematics, 17.09.2020 08:01
Mathematics, 17.09.2020 08:01
Mathematics, 17.09.2020 08:01
Mathematics, 17.09.2020 08:01
Biology, 17.09.2020 08:01
Mathematics, 17.09.2020 08:01
English, 17.09.2020 08:01
Mathematics, 17.09.2020 08:01
Mathematics, 17.09.2020 08:01
Mathematics, 17.09.2020 08:01
Mathematics, 17.09.2020 08:01