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Lapatulllka [165]
3 years ago
7

PLEASE SHOW STEPS!

Physics
1 answer:
SOVA2 [1]3 years ago
8 0

Answer:

660 J/kg/°C

Explanation:

Heat lost by metal = heat gained by water

-m₁C₁ΔT₁ = m₂C₂ΔT₂

-(0.45 kg) C₁ (21°C − 80°C) = (0.70 kg) (4200 J/kg/°C) (21°C − 15°C)

C₁ = 660 J/kg/°C

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Plz help me with this!
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an example is plastic (or plastic cotton reel, plastic container ect.)
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3 years ago
The MAC is 58 inches, The CG limits are from 26% to 43% MAC. If the CG is found to be
eimsori [14]

By working with percentages, we want to see how many inches is the center of gravity out of the limits. We will find that the CG is 1.45 inches out of limits.

<h3>What are the limits?</h3>

First, we need to find the limits.

We know that the MAC is 58 inches, and the limits are from 26% to 43% MAC.

So if 58 in is the 100%, the 26% and 43% of that are:

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But we know that the CG is found to be 45.5% MAC, then it measures:

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26.39 in - 24.94 in = 1.45 in

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If you want to learn more about percentages, you can read:

brainly.com/question/14345924

6 0
2 years ago
How long does it take for light to travel from the sun to earth?
Eddi Din [679]
It's about 6 minutes, as I seem to recall. Sort of the time for the earth to go into shadow darkness when there's an eclipse ???
8 0
3 years ago
Read 2 more answers
Which of the following represents an element?
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H2 is the correct answer
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A rock is thrown straight up. What is the net external force acting on the rock when it is at the top of its trajectory (ignorin
Nat2105 [25]

Answer:

b) Gravity

Explanation:

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8 0
3 years ago
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