Forces that are equal but opposite are called
A. Net force
B. Friction
C. Centripetal force
D. Balanced forces

Which of the following objects has the
greatest inertia?
A. A parked car
B. A baseball during a home run
C. A textbook sitting on a desk
D. A woman running on the sidewalk

John participated in a marathon in which he came
in first place. He ran 5 miles at a speed of ten
minutes per mile. How long did it take John to
finish the marathon?
A. 2 minutes
B. 15 minutes
C. 50 minutes
D. 500 minutes

It is harder to push a full shopping cart than an
empty one. Which of Newton’s laws does this
describe and why?
A. 1st
B. 2nd
C. 3rd
D. 1st and 2nd

A: 4
B: 9
C: 3
D: 8

a

explanation:

no diagram was provided, but i'm guessing it's the one i've attached to my answer.

here, a mechanical force turns the rod.   this generates an electric current in the coil, which powers the bulb.

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

f=ma newton

f=100x2.5=250n