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slamgirl [31]
3 years ago
7

Wave 1 carries more energy than Wave 2. Wave 3 carries more energy than Wave 2. Keeping speed constant, the greatest amount of e

nergy is carried by a wave with
Physics
1 answer:
inn [45]3 years ago
7 0

Answer:

<em>The greatest amount of energy is carried by a wave with the  largest frequency.</em>

Explanation:

<em>velocity= frequency X wavelength </em>

<em>If the three waves moves with the same t the speed of light, then those with the largest frequency have more energy. </em>

<em>That is to say,  a wave with a higher frequency and a  lower  wavelength will have the highest energy.</em>

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What is the difference between the experimental group and the control group? its like confusing
Doss [256]
An experimental group is the group in the experiment that receives the variable that is being tested. Only one variable is tested at a time. The control group does not receive the test variable. the experimental groups are used to find the answers in a experiment
3 0
3 years ago
Two blocks can collide in a one-dimensional collision. The block on the left hass a mass of 0.30 kg and is initially moving to t
snow_lady [41]

Answer:

a) 3.632 m/s

b) 0.462 m/s

Explanation:

Using the law of conservation of momentum:

m_{1} u_{1} + m_{2} u_{2}= m_{1} V_{1} + m_{2} V_{2}..........(1)

m_{1} = 0.30 kg\\u_{1} = 2.4 m/s\\m_{2} = 0.80 kg\\u_{2} = 0 m/s

Substituting the above values into equation (1) and make V2 the subject of the formula:

0.3(2.4) + 0.80(0)= 0.3 V_{1} + 0.8 V_{2}\\

V_{2} = \frac{0.72 - 0.3 V_{1}}{0.8}..................(2)

Using the law of conservation of kinetic energy:

0.5m_{1} u_{1} ^{2} + 1.2 = 0.5m_{1} V_{1} ^{2} + 0.5m_{2} V_{2} ^{2}\\0.5(0.3) (2.4) ^{2} + 1.2 = 0.5(0.3) V_{1} ^{2} + 0.5(0.8)V_{2} ^{2}\\

2.064 = 0.15 V_{1} ^{2} + 0.4V_{2} ^{2}.......(3)

Substitute equation (2) into equation (3)

2.064 = 0.15 V_{1} ^{2} + 0.4(\frac{0.72 - 0.3V_{1} }{0.8})  ^{2}\\2.064 = 0.15 V_{1} ^{2} + 0.4(\frac{0.5184 - 0.432V_{1} + 0.09V_{1} ^{2}  }{0.64}) \\1.32096 = 0.096 V_{1} ^{2} + 0.20736 - 0.1728V_{1} + 0.036V_{1} ^{2} \\0.132 V_{1} ^{2} - 0.1728V_{1} - 1.1136 = 0\\V_{1} = 3.632 m/s

Substituting V_{1} into equation(2)

V_{2} = \frac{0.72 - 0.3 *3.632}{0.8}\\V_{2} = \frac{0.72 - 0.3 *(3.632)}{0.8}\\V_{2} = 0.462 m/s

8 0
3 years ago
It takes light from the closest star to Earth (other than the Sun) about four years to reach Earth. If intelligent life were on
mafiozo [28]

If the intelligent aliens on that distant planet could receive our signal, and then reply to us INSTANTLY with no delay, then our Scientists on Earth would hear the response <em>eight years after</em> they sent their original greeting.

Light and radio waves both travel through space at the same speed.  If our scientists sent a radio transmission to that distant planet, it would take four years for the radio message to get there and be heard.  Any response would take four years to travel back to us.  If the aliens didn't dilly-dally and sent their response immediately, the round trip would total up to eight years.  

4 0
3 years ago
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Vlada [557]

Answer:

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Explanation:

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Let's apply this last equation

               

Total time is

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3 years ago
Two groups of students made plans to help their community during a hurricane. The first group suggested training the community a
zysi [14]
The correct option is D.
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