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Harrizon [31]
3 years ago
11

5

Physics
1 answer:
Black_prince [1.1K]3 years ago
4 0
What is happening to this sound is that it’s vibrating over and over.
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7. Mrs. Everhart developed the theory that all bulldogs are great pets. After all her bulldog Meatball is a
Advocard [28]

Answer: No.

Explanation:

A scientific theory is an explanation of some aspect of the natural world that can be tested several times, and follows the scientific method. And, when possible, theories are tested with experiments.

Now, a scientific theory must meet some criteria, and one of those is that it must be supported by several (and independent) strands of evidence.

In this case, we have only one, Meatball, and it is not enough, then it can not be a scientific theory.

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3 years ago
Jennifer is making a collage using her favorite photos. She wants to cover the collage with something that allows her to see the
Karolina [17]
B.) A transparent material
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Read 2 more answers
Electronic flash unit cameras contain a capacitor for storing the energy used to produce the flash. In one such unit the flash l
Stolb23 [73]

Answer:

(A) 421 J energy stored in the capacitor for one flash.

(B) The value of capacitance is 0.0537 F

Explanation:

Given :

(A)

Time t = \frac{1}{675}

Average power P = 2.7 \times 10^{5} W

From power equation,

   P= \frac{E}{t}

So energy in one light is given by,

   E = Pt

  E = 2.7 \times 10^{5} \times \frac{1}{675}  = 400 J

Since efficiency is 95 % so we can write, energy stored in one flash,

E_{tot} = \frac{400}{0.95} = 421 J

(B)

From the formula of energy stored in capacitor,

 E = \frac{1}{2}C V^{2}

Where E = E_{tot} and V = 125 V

 C = \frac{2E}{V^{2} }

 C = \frac{2 \times 421}{15625}

 C = 0.0537 F

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3 years ago
What causes air to move recirculate from one place to another
sergey [27]

Answer:air flow and the movement from where it’s coming from

Explanation:

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3 years ago
Which statement is true of a mechanical wave?
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It must have a medium. It must travel in empty space. Mechanical waves are waves which needs medium of propogation.
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