How many electrons must be transferred to a body to produce a charge of 125 nc? a. 1.25 x 107 b. 3.45x 1011 c. 1.60x 10-19 d. 7.81 x1011 e. 1.28x 1012 2. protons a. are about 2000 times more massive than electrons. b. are about 2000 times less massive than electrons. c. have 2000 times the charge of electrons. d. have 1/2000 the charge of electrons. 3. charge a is +50 nc and is 10.0 cm from charge b, which is +100 nc. what is true about the forces on the charges? a. the force on a and the force on b are equal in magnitude but opposite in direction. b. the force on a is larger than the force on b, and they are opposite in direction. c. the force on b is larger than the force on a, and they are opposite in direction. d. the force on a and the force on b are equal in magnitude and direction. 4. charges q1 and q2 exert repulsive forces of 10 n on each other. what is the repulsive force when their separation is decreased so that their final separation is 80% of their initial separation? a. 16 n b. 12 n c. 10 n d. 8.0 n e. 6.4 n 5. [in-class discussion wednesday] two positive charges (+8.0 mc and +2.0 mc) are separated by 300 m. a third charge is placed at distance r from the +8.0 mc charge in such a way that the resultant electric force on the third charge due to the other two charges is zero. the distance ris a. 0.25 km. b. 0.20 km. c.0.15 km. d. 0.13 km. e. 0.10 km.

so here is the information for current research:

-nrel's geothermal analysts, scientists, and engineers perform a full range of research from developing advanced methods of locating and accessing geothermal resources to exploring innovative technologies to extract and produce clean energy from the heat of the earth

and here is the information for the technology of geothermal energy:

-it's clean and sustainable

-resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma

-almost everywhere, the shallow ground or upper 10 feet of the earth's surface maintains a nearly constant temperature between 50° and 60°f (10° and 16°c)

-geothermal heat pumps can tap into this resource to heat and cool buildings

-a geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building

-in the winter, the heat pump removes heat from the heat exchanger and pumps it into the indoor air delivery system

-in the summer, the process is reversed, and the heat pump moves heat from the indoor air into the heat exchanger

-the heat removed from the indoor air during the summer can also be used to provide a free source of hot water

there are no contact forces mentioned on the list of choices that you've provided.

no. bullets are macro objects. wave nature is for light waves, extremely tiny particles. if a light particle was the size of your finger, the bullet would be the size of the universe. so basically, that huge difference in size makes the wave nature of matter insignificant.

moisture is lackin, and organic acids are scarce.