3 years ago

An explosion that destroys a massive star is called a

Physics

2 answers:

BigorU [14]3 years ago

4 0

B) is the correct answer hope this helps

ololo11 [35]3 years ago

3 0

An explosion that destroys a massive star is called a supernova ........the answer is B) supernova

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3 years ago

Your tired 10 lb. baby cousin is cradled in your arms as you're walking back and forth across a 15m room to get her to fall asle

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Work done = Force x Distance

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3 years ago

What can you calculate using the equation P equals W/t

Natalka [10]

WE CALCULATE POWER AND RATE OF DOING WORK IS CALLED POWER

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3 years ago

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the sys

son4ous [18]

Answer:

2500 J

Explanation:

We can solve the problem by using the first law of thermodynamics:

$\Delta U =U_f - U_i =Q-W$

where

Uf is the final internal energy of the system

Ui is the initial internal energy

Q is the heat added to the system

W is the work done by the system

In this problem, we have:

Q = +1000 J (heat that enters the system)

W = +500 J (work done by the system)

Ui = 2000 J (initial internal energy)

Using these numbers, we can re-arrange the equation to calculate the final internal energy:

$U_f = U_i + Q-W=2000 J+1000 J-500 J=2500 J$

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4 years ago