Two identical spheres of known mass M are attached to opposite ends of a rod of negligible mass. The mass-rod-mass system is spun in the vertical plane and then released so the system falls downward as it rotates, as shown in the figure. Data are collected and shown in the graph of the vertical velocity, v, of the two spheres as a function of time t. The positive direction is considered to be downward. A student uses the graph to make three claims. Claim 1: Change in linear momentum of the center of mass of the system from 0.0s to 0.5s can be determined.
Claim 2: The average applied force exerted on the center of mass of the system from 0.0s to 0.5s can be determined.
Claim 3: The change in the kinetic energy of the system from 0.0s to 0.5s can be determined.
Which of the student's claims are correct?

Claim 1 and claim 2 only

Claim 1 and claim 2 only
A

Claim 1 and claim 3 only

Claim 1 and claim 3 only
B

Claim 2 and claim 3 only

Claim 2 and claim 3 only
C

Claim 1, claim 2, and claim 3

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

answerdmitry mendeleyev made a workable classification of the elements