2 years ago

Which of the following statements best describes the method of energy conservation known as cogeneration?

Physics

1 answer:

Mazyrski [523]2 years ago

6 0

Answer:

heat and power

Explanation:

is the simultaneous production of electricity and heat both of which are used

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A 5.00 gram bullet moving at 600 m/s penetrates a tree trunk to a depth of 4.00 cm.

Crazy boy [7]

A) Work energy relation;
Work =ΔKE ; work done = Force × distance, while, Kinetic energy = 1/2 MV²
F.s = 1/2mv²
F× 4×10^-2 = 1/2 × 5 ×10^-3 × (600)²
F = 900/0.04
= 22500 N
Therefore, force is 22500 N

b) From newton's second law of motion;
F = Ma
Thus; a = F/m
= 22500/(5×10^-3)
= 4,500,000 m/s²
But v = u-at
0 = 600- 4500,000 t
t = 1.33 × 10^-4 seconds

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3 years ago

A car slows down from 30 m/s to rest in a distance of 85 m. What was its acceleration?

ziro4ka [17]

120 acceleration oh yeah i am sure about this

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3 years ago

Jacob is riding his bike down a tall hill. At the top of the hill, he has 2800J of potential energy. At the bottom of the hill,

elena55 [62]

Answer:

Just find the formula then you can do it

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