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AURORKA [14]
3 years ago
14

PLS ANSWER FAST WILL GIVE BRAINLEST!!!!!!!!!

Physics
1 answer:
Paul [167]3 years ago
8 0

Answer:

The kinetic energy of an object is directly proportional to the square of its speed. That means that for a twofold increase in speed, the kinetic energy will increase by a factor of four.

Found it on the internet

Explanation:

Hope this helps dude

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Which of the following mechanical waves has the most energy?
zhenek [66]
Gamma radiation has the greatest energy<span>. This </span>is<span> because gamma radiation </span>has the highest <span>frequency. </span>Energy<span> a frequency.

Hope this helps, 

kwrob</span>
8 0
4 years ago
(1 point) At noon, ship A is 10 nautical miles due west of ship B. Ship A is sailing west at 22 knots and ship B is sailing nort
Veronika [31]

Answer:28.8 knots

Explanation:

The ships are moving as the sides of a right triangle. Thus, Pyhogorean theorem will be useful in the following steps. Next, we have to know that the rate of change in distance, which is called velocity, can be described in terms of derivatives.

First, we have to calculate the distances covered by the ships from noon to 6 PM. In 6 hours, ship A moved 22*6=132 nautical mile. However, their first distance was 10 nautical miles, so 132+10=142 miles is the equivalent of A's displacement. For B, the distance travelled is 19*6=114 miles. From now on, A=142 miles and B=114 miles.

The distance between them is described with Pythogorean theorem, which is D=\sqrt{A^{2} +B^{2} } and when we replace the values A and D, we find Distance (D) to be 182 miles.

Now, let's make the notations clear. The velocity of A and B is notated as \frac{dA}{dt} and \frac{dB}{dt}. The rate of change of distance is also notated as \frac{dD}{dt}. Now, we have to find \frac{dD}{dt} from the Pythogorean theorem. If we derive the Pythogorean expression D=\sqrt{A^{2} +B^{2} } , we would have:

\frac{dD}{dt} =\frac{1}{2} *(A^{2} +B^{2} )^{-1/2} *(2*A*\frac{dA}{dt} + 2*B*\frac{dB}{dt} )

The derivation here includes chain rule and derives the interior parts of the parenthesis. When we insert distances for A and B and velocities for derivation notations, the formula becomes:

\frac{dC}{dt} =\frac{1}{2}*(142^{2}   +114^{2})^{-\frac{1}{2} }*(2*142*22 + 2*114*19) and the answer is 28.6 knots.

6 0
3 years ago
Doubling the distance between you and a source of radiation decreases your exposure by:
Elan Coil [88]

Given what we know, we can confirm that doubling the distance between you and a source of radiation decreases your exposure by 75%.

<h3>How is distance related to radiation exposure?</h3>
  • As expected, increasing the distance from the source of the radiation will reduce its negative effects.
  • Counter-intuitively however, doubling the distance does not reduce by half, but rather reduces its effects by 3/4th.
  • This is due to the fact that the radiation effects from the source are inversely proportional to the square of the distance.
  • This causes the changes to be far greater than expected.

Therefore, given that the radiation is proportional to the square of the distance, instead of being of a more direct relation, we can confirm that when doubling the distance between yourself and the source of the radiation, you can reduce its effects by 3/4 or 75%.

To learn more about radiation visit:

brainly.com/question/9815840?referrer=searchResults

5 0
3 years ago
Physicists at CERN study the conditions present during the big bang by using machines to do what?
VARVARA [1.3K]

Answer:

The Answer is gonna be According D.separate atoms from their electrons

8 0
3 years ago
What can happen if the president chooses to veto a law that has been passed? The law returns to being introduced in one of the h
andre [41]

Answer:

The president s decision can be overridden by a majority of Congress.

Explanation:

If congress gets the majority (2/3) vote to pass it, its passed

4 0
3 years ago
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