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andreev551 [17]
1 year ago
10

3.2 Define conservation of energy.​

Physics
1 answer:
Free_Kalibri [48]1 year ago
5 0

Answer:

A principle stating that energy cannot be created or destroyed, but can be altered from one form to another.

Explanation:

You might be interested in
How would a spinning disk's kinetic energy change if its moment of inertia was five times larger but its angular speed was five
Keith_Richards [23]

Answer:

<em>The kinetic energy of a spinning disk will be reduced to a tenth of its initial kinetic energy if its moment of inertia is made five times larger, but its angular speed is made five times smaller.</em>

<em></em>

Explanation:

Let us first consider the initial characteristics of the angular motion of the disk

moment of inertia = I

angular speed = ω

For the second case, we consider the characteristics to now be

moment of inertia = 5I  (five times larger)

angular speed = ω/5  (five times smaller)

Recall that the kinetic energy of a spinning body is given as

KE = \frac{1}{2}Iw^{2}

therefore,

for the first case, the K.E. is given as

KE = \frac{1}{2}Iw^{2}

and for the second case, the K.E. is given as

KE = \frac{1}{2}(5I)(\frac{w}{5} )^{2}   = \frac{5}{50}Iw^{2}

KE = \frac{1}{10}Iw^{2}

<em>this is one-tenth the kinetic energy before its spinning characteristics were changed.</em>

<em>This implies that the kinetic energy of the spinning disk will be reduced to a tenth of its initial kinetic energy if its moment of inertia is made five times larger, but its angular speed is made five times smaller.</em>

6 0
3 years ago
Can someone please describe surface tension to me. Please don't give me the dictionary definition. Thank you
11111nata11111 [884]


Surface tension - My definition -

It's exactly what it says - The tension of a surface with a liquid (such as water), caused by the attraction of the surfaces layer ---- I hope this helps ---- I actually did research it and got some of this from a dictionary, but I changed some of it, too.... Sorry if this doesn't help :)

6 0
3 years ago
Will mark as brailiest if correct!!!!!!!!!
ivolga24 [154]

Answer:

D.diamond

Explanation:

Refraction occurs due to the bending of light rays as they pass from one medium to another. The light rays bend as their speed changes as they pass from one medium to another. The more the speed changes, the more the light bends and therefore more refraction occurs. When light passes from air to the diamond, the speed of light decreases more than any of the other materials listed in the given choices. So the light rays slow down the most  diamond and so most refraction occurs in diamond.

5 0
3 years ago
PLEASE HELP ASAP BEST ANSWER WILL BE MARKED BRAINLIEST!!!!!
umka2103 [35]

Answer:

i think its The movement of large pieces of ice from one place to another.

Explanation:

3 0
2 years ago
Help please, i don't know what the answer is but i accidently clicked D .....
GaryK [48]

Answer:

You are right correct option is D.

4 0
3 years ago
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