3 years ago

What does the law of conservation of energy say

2 answers:

tatiyna3 years ago

8 0

The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it's added from the outside.

HACTEHA [7]3 years ago

6 0

Answer: states that energy can neither be created nor destroyed - only converted from one form of energy to another.

Explanation:

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What is the momentum of a bird with a mass of 0.018kg flying at 15m/s?

Mazyrski [523]

Answer:

0.27 kg-m/s

Explanation:

i believe this is the correct answer

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2 years ago

Which characteristic surface of the moon contains the same rock as the ocean floor

Ratling [72]

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3 years ago

N discussing engines, the ratio of output work to input work expressed as a percentage is called

djyliett [7]

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3 years ago

The alarm at a fire station rings and a 87.5-kg fireman, starting from rest, slides down a pole to the floor below (a distance o

blsea [12.9K]

Answer:

$F_f=840N$

Explanation:

From the question we are told that

Weight of fireman $W_f= 87.5kg$

Pole distance $D=4.10m$

Final speed is $V_f 1.75m/s$

Generally the equation for velocity is mathematically represented as

$v^2 = v_0^2 + 2 a d$

Therefore Acceleration a

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Generally the equation for Frictional force $F_f$ is mathematically given as

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$F_f=m*(g-0.21)$

$F_f=87.5*(9.81-0.21)$

Therefore

$F_f=840N$

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3 years ago

Why do areas north of the artic circle in tje northern hemisphere experience a polar day lasting for several months during summe

adell [148]

<span>The regioin is titled towqrd the Sun during polar day. (C)

(The same exact thing happens in areas south of the Antarctic Circle
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3 years ago

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