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vaieri [72.5K]
4 years ago
9

A car accelerates from 10 km/hr to 50 km/hr in 8 seconds. What is the acceleration?

Physics
1 answer:
nikklg [1K]4 years ago
6 0
The answer is 5 km/hr

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Mr. Mann explained that when light passes from air into the water, the light waves bend, or ___________, and the pencil appears
posledela

Answer:

the light waves bend or REFRACT

Explanation:

4 0
3 years ago
What were the two classifications of motion according to Aristotle?
wel

Answer:

natural motion and violent motion

Explanation:

8 0
3 years ago
45.678 g to 4 digits
PolarNik [594]

Answer:

<h2>45.68 g</h2>

Explanation:

Given 45.678 g, converting the value to 4 digits is similar to converting the decimal number to 4 significant figure. We can see that the decimal number initially contains 5 numbers. To covert to a 4 digits number we will convert the last digit which is 8 to 0 because 0 is insignificant.

If the number we are converting to zero is more than 4 then the preceding number (7) will be rounded up by adding 1 to it

The decimal number will become 45.68.

Note that the value of 7 was rounded up to 8 since the value we are converting to zero is more than 4.

<em>Hence the decimal value in 4 digits is 45.68 g</em>

7 0
3 years ago
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SIZIF [17.4K]
The correct answer is the Sun.i hope that helped! if you have any questions or concerns about the answer i gave you please let me know!!
4 0
4 years ago
24. A total of 165 J of work is done on a gaseous refrigerant as it undergoes compression. If the internal energy of the gas inc
Yuliya22 [10]

The total amount of energy transferred as heat is equal to 288 Joules.

<u>Given the following data:</u>

  • Internal energy = 123 Joules
  • Work done = 165 Joules

To calculate the total amount of energy transferred as heat, we would apply the first law of thermodynamics.​

<h3>The first law of thermodynamics.</h3>

Mathematically, the first law of thermodynamics is given by the formula:

\Delta E = Q - W

<u>Where;</u>

  • \Delta E is the change in internal energy.
  • Q is the quantity of heat transferred.
  • W is the work done.

Substituting the given parameters into the formula, we have;

123 = Q - 165\\\\Q=123+165

Q = 288 Joules.

Read more on internal energy here: brainly.com/question/25737117

4 0
3 years ago
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