Increases
Explanation:
Energy increases the speed of the particles in a substance. When energy is added to a substance they gain more kinetic to move.
- When energy is added to solid, the particles begins to vibrate about their fixed point.
- They reach a point where they break lose and the ordered structure of a typical solid collapses.
- They begin to move about freely and flow as in a liquid.
- When enough energy is added, they break their intermolecular attractions and becomes gaseous.
- An increase in energy increases the kinetic energy of the particles of a substance.
- The reverse is the case when energy is removed.
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Kinetic energy brainly.com/question/6536722
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B. Ask a question - Hypothesize - Experiment - Analyze - Draw a conclusion
Explanation:
The scientific method is a systematic approach in which investigations are conducted in science.
It follows systematic manner;
- An observation in nature is made using the senses.
- Questions are then asked about such observations. This is the inquiry phase.
- A hypothesis is then formula to predict what might cause the observation.
- Experiments are then conducted
- The results are analyzed and a conclusion is drawn
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Experiments brainly.com/question/5096428
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Answer:
b. 2 m
Explanation:
Given that:
the identical speakers are connected in phases ;
Let assume ; we have speaker A and speaker B which are = 3 meter apart
An observer stands at X = 4m in front of one speaker.
If the amplitudes are not changed, the sound he hears will be least intense if the wavelength is: <u> </u>
From above; the distance between speaker A and speaker B can be expressed as:
The path length difference will now be:
= 5 m - 4 m
= 1 m
Since , we are to determine the least intense sound; the destructive interference for that path length will be half the wavelength; which is
= 
= 2 m
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