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Anarel [89]
3 years ago
5

Define the first law of thermodynamic with one example.

Mathematics
1 answer:
DanielleElmas [232]3 years ago
7 0

Answer:

See explanation below.

Step-by-step explanation:

The first law of thermodynamic states that heat is a form of energy, and as such, is subject to the principle of conservation of energy (Energy is not destroyed or created but remains constant)

For example, when you put an ice cube in water, the ice will melt but the water will get colder, this is because the temperature between the ice cube and the water tends to an equilibrium and the total heat in the system remained the same during this time.

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How many whole sandwiches can be made with 2 pounds of cheese if each sandwich has 3 ounces of cheese on it
mariarad [96]
10 whole sandwiches can be made with 2 pounds of cheese if each sandwhich has 3 ounces of cheese on it.

2 pounds = 32 ounces

32/3 = 10.67
6 0
3 years ago
Read 2 more answers
Write 7/11 as a decimal ( round to three decimal places as needed
Degger [83]
0.636
Add a 0 then a decimal .you will see the number 70 goes with 6 *11=66
then the remainder will be 4 , add a 0 and you will see the number goes with 3*11= 33 then the remainder will be 7 again add a 0  and multiply 6. You will get your answer.
3 0
2 years ago
What is the equation of a line with points (16,-4) and (-32-10) Oy - 4= 1 (x - 16) Oy+4= 1 (x – 16) Oy - 10 = 3 (x – 32) O y + 1
stira [4]

Answer:

  • D. y + 10 = 1/8* (x + 32)

Step-by-step explanation:

Use the given points to work out the equation of the line.

<u>Find the slope:</u>

  • m = (- 10 - (-4)) / (- 32 - 16) = - 6 / - 48 = 1/8

<u>Use (-32, - 10) and point- slope form:</u>

  • y - (- 10) = 1/8*(x - (-32))
  • y + 10 = 1/8* (x + 32)

Correct choice is D

8 0
3 years ago
Read 2 more answers
I need help with math!!! time is running out!!! will mark brainliest!!!
igomit [66]
Correct answer is B. (graph in the first quadrant).
5 0
3 years ago
The length of one leg of a 45° − 45° − 90° triangle is 24. What is the perimeter of the triangle?
prohojiy [21]
<u><em>Answer:</em></u>
second leg = 24 units
hypotenuse = 24√2 units
perimeter = 48 + 24√2 units

<u><em>Explanation:</em></u>
<u><em>1- getting the other leg:</em></u>
Since the triangle given is an isosceles triangle, this means that the two legs are equal in lengths.
We are given that one of the legs is 24 units, therefore, the other leg is also 24 units

<u><em>2- getting the hypotenuse:</em></u>
The given triangle is a right-angled triangle. We can use Pythagorean theorem to get the hypotenuse as follows:
(hypotenuse)² = (24)² + (24)²
(hypotenuse)² = 1152
hypotenuse = 24√2 units

<u><em>3- getting the perimeter:</em></u>
The perimeter of the triangle is the summation of its three sides.
In the given triangle, we have:
two legs = 24 units
hypotenuse = 24√2 units
Therefore:
perimeter = 24 + 24 + 24√2
perimeter = 48 + 24√2 units

Hope this helps :)
5 0
3 years ago
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