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lara [203]
3 years ago
13

The unit of energy is a derived quantity. why​

Physics
1 answer:
Lubov Fominskaja [6]3 years ago
7 0

Answer:

Energy is the tendency to do work.

Explanation:

Energy unit is Joule

1 Joule means 1 kgm²/s²

Energy =Kinertic energy

=1/2 mv²

unit= kgm²/s²

So energy unit is derived unit.

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Heat energy goes from
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Answer:  Heat moves in three ways: Radiation, conduction, and convection.

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3 years ago
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2. As a pendulum swings, its energy is constantly converted between kinetic
Alex

Answer:

at point F

Explanation:

To know the point in which the pendulum has the greatest potential energy you can assume that the zero reference of the gravitational energy (it is mandatory to define it) is at the bottom of the pendulum.

Then, when the pendulum reaches it maximum height in its motion the gravitational potential energy is

U = mgh

m: mass of the pendulum

g: gravitational constant

The greatest value is obtained when the pendulum reaches y=h

Furthermore, at this point the pendulum stops to come back in ts motion and then the speed is zero, and so, the kinetic energy (K=1/mv^2=0).

A) answer, at point F

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3 years ago
Continuing education opportunities allow adults to
fgiga [73]

Continuing education opportunities allow adults to improve their skills, complete their education and also to change careers.

Answer: Option D

<u>Explanation: </u>

As we continue our education for higher studies we can learn new things. We can improve our skills by going for higher studies. Some people have a break in their education and they can also continue their education after sometime to complete their course.

So, it helps them to cater their needs and enhance their knowledge. Also when we go for higher studies, we get to know other things about the subject and can try for different career choices. Also, we can even change our ongoing career if we go for higher education and find some other career more interesting and profitable than the existing ones.

6 0
4 years ago
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What is the kinetic energy of an object with a mass of 10 kilograms traveling at a speed of 10 meters per second?
bagirrra123 [75]

Answer:

500 J

Explanation:

Kinetic Energy = (mass x velocity x velocity) ÷ 2

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KE = (m × v × v) ÷ 2

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The kinetic energy of the object is 500 J (joules). Hope this helps, thank you !!

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Density is mass per unit volume.
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