The power rating of a resistor is the maximum power the resistor can safely dissipate without too great a rise in temperature and hence damage to the resistor.
a) if the power rating of a 15kω resistor is 5.0 w, what is the maximum allowable potential difference across the terminals of the resistor?
express your answer using two significant figures.
b) a 9.0kω resistor is to be connected across a 120-v potential difference. what power rating is required?
express your answer using two significant figures.
c) a 100.0 ω and a 150.0 ω resistor, both rated at 2.00 w, are connected in series across a variable potential difference. what is the greatest this potential difference can be without overheating either resistor?
d) what is the rate of heat generated in a 100.0 ω resistor under these conditions?
e) what is the rate of heat generated in a 150.0 ω resistor under these conditions?

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

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-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

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min

answersysvol bloat;

answerdmitry mendeleyev made a workable classification of the elements