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zhenek [66]
3 years ago
7

Power is work done over a what?

Physics
1 answer:
melomori [17]3 years ago
4 0
No the answer is energy 
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An object moves with a positive acceleration. Could the object be moving with increasing speed, decreasing speed or constant spe
Masja [62]

Answer:

Increasing speed.

Explanation:

In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.

This simply means that, acceleration is given by the subtraction of initial velocity from the final velocity all over time.

Hence, if we subtract the initial velocity from the final velocity and divide that by the time, we can calculate an object’s acceleration.

Mathematically, acceleration is given by the equation;

Acceleration (a) = \frac{final \; velocity  -  initial \; velocity}{time}

In this scenario, an object moves with a positive acceleration. Thus, the object is moving with an increasing speed and as such it has acceleration in the same direction as its velocity with respect to time.

3 0
3 years ago
In Figure 10.13, the author illustrates a book being raised at constant speed. Which of the following statements are true? Selec
sergey [27]

The true statement is that ;there is no change in the kinetic energy of the book and the potential energy of the book-Earth system increases.

We have to note that from the law of conservation of mechanical energy, the sum of the kinetic and potential energy of the book at any point remains constant.

If the book is being raised at constant speed, the the true statement is that ;there is no change in the kinetic energy of the book and the potential energy of the book-Earth system increases.

Learn more about kinetic energy: brainly.com/question/15308590

7 0
2 years ago
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The main purpose of the turbine in a turbojet engine is to
Nuetrik [128]

Answer:

The main purpose of the turbine in the turbojet engine is to Drive the compressor.

Explanation:

5 0
3 years ago
Which bulbs would be on and or off if :
insens350 [35]
Bulbs c and b would still be screwed in if they were in to begin with and bulbs A, D, and E. would be unscrewed
6 0
3 years ago
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The thing that is circled, correct me if im wrong please.
Irina18 [472]
It looks correct, but that graph only shows position and time?
5 0
3 years ago
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