Answer:
Explanation:
= 4190 J/kg.K
= 910 J/Kg. K
= 1.50 kg
= 1.80 kg
ΔT + ΔT
= (1.50)(910)(85.0-20)+(1.80)(4190)(85.0-20)
= 578,955 J
= 579 kJ
An electric motor converts electrical energy into mechanical energy.
What is electric motor?
An electric motor is an electrical machine that converts electrical energy into mechanical energy.
A generator is mechanically identical to an electric motor, but operates with a reversed flow of power
Hence it will convert mechanical energy into electrical energy.
Some applications of electric motor are:
Industrial fans, blowers and pumps, machine tools, household appliances, power tools, vehicles, and disk drives.
Learn more about electric motor :brainly.com/question/15409160
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Answer:
D
Explanation:
D. A swing moving back and forth
Answer:
Simple machines are useful because they reduce effort needed for people to perform tasks beyond their normal capabilities.
Explanation:
It changes because force is somewhat like pressure. Force is continuously against the object so as a result, speed changes .