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3 years ago

Hermal energy is a form of... A. Potential energy. B. Kinetic energy. C. Chemical energy.

Physics

1 answer:

aev [14]3 years ago

6 0

Thermal energy also known as 'heat energy' is a form of kinetic energy.

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Consider two wind turbines, each located in sites with the same wind speed, and each with the same efficiency. Turbine 1 has a r

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Answer:

shut up nerd

Exption:

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3 years ago

A curve in a stretch of highway has radius R. The road is not banked in any way. The coefficient of static friction between the

adelina 88 [10]

Answer:

maximum possible velocity = $\sqrt{ugR}$

Explanation:

centripetal acceleration when the car is going in the circle must be less than the maximum friction for the car to not slip.

centripetal acceleration $\frac{mv^{2}}{r}$

where v is the velocity of car and r is the radius of circle

maximum friction = umg

where u is the coefficient of static friction.

therefore $umg\geq \frac{mv^{2}}{R}$

therefore maximum possible velocity = $\sqrt{ugR}$

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3 years ago

A 25kg chair initially at rest on a horizontal floor requires a 165 N horizontal force to set it in motion. Once the chair is in

SCORPION-xisa [38]

Answer:

$\mu_k=0.51$

Explanation:

Given that

Mass , m = 25 kg

We know that when body is in rest condition then static friction force act on the body and when body is in motion the kinetic friction force act on the body .That is why these two forces are given as follows

Static friction force ,fs= 165 N

Kinetic friction force ,fk = 127 N

If the body is moving with constant velocity ,it means that acceleration of that body is zero and all the forces are balanced.

Lets take coefficient of kinetic friction = μk

The kinetic friction is given as follows

fk = μk m g

Now by putting the values

127 = μk x 25 x 9.81

$\mu_k=\dfrac{127}{25\times 9.81}$

$\mu_k=0.51$

Therefore the value of coefficient of kinetic friction will be 0.51

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2 years ago

Organs are made up of tissues. A group of organs working together to perform a function for the body is called

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Organ system is the answer i believe

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3 years ago

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Wind power holds great promise for the united states because of the _____________, and experts believe wind energy could meet as

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3 years ago