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Mashutka [201]
3 years ago
12

Which of the following conversion factors would you use to change 18 kilometers to meters?

Physics
2 answers:
Tcecarenko [31]3 years ago
6 0
Use choice B. 1 km / 1000 m 

from what result that 18 km = 18 000 m 

hope helped 
Shtirlitz [24]3 years ago
6 0

Answer:

The answer is A) 1,000 meters = 1 Kilometer.                                                        

Explanation:

To convert 18 Kilometers into meters, one would have to  multiply the figure given in Kilometer by 1000.

Therefore we have 18 x 1000

= 18,000.

So 18 Kilometers is also 18,000 meters when converted.

Cheers!

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Protons‎: ‎29 Atomic Number‎: ‎29

Explanation:

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3 years ago
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Which is an example of a chemical change?
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It’s burning wax. All of the other options are physical changes .
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A heat engine extracts 42. 53 kj from the hot reservior and exhausts 17. 69 kj into the cold reservior. what is the work done?
ludmilkaskok [199]

The answer is  24.84kJ.

We apply the expression for the work done by the heat engine is,

W=E_{i n}-E_{o u t}. Putting all given values in the equation we get the final answer.

What is heat engine?

  • A heat engine is a machine that uses heat to generate power. It draws heat from a reservoir, uses that heat to produce work, such as move a piston or lift weights, and then releases that heat energy into the sink.
  • We are given:The heat input is $E_{i n}=42.53 \mathrm{~kJ}$. The heat output is $E_{o u t}=17.69 \mathrm{~kJ}$.
  • The expression for the work done by the heat engine is,W=E_{i n}-E_{o u t}
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To learn more about heat engine visit: brainly.com/question/15735984

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6 0
2 years ago
Starting from rest, a 4.0-kg body reaches a speed of 8.0 m/a in 20 s. What is te net force acting on the body?
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The guy below is wrong!


F=ma
Where force = mass x acceleration

We dont have acceleration, a= change in velocity divided by the time taken.
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Using F=ma

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3 years ago
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▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

The product in a chemical reaction is written on the Right side of the arrow, so

the product formed here in given reaction is :

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