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tatuchka [14]
3 years ago
10

Does fire use energy??

Physics
1 answer:
serious [3.7K]3 years ago
6 0
No fire uses oxygen sparks and flammable wood or whatever you choose to burn
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How are mountain ecosystems different from other ecosystems?
Andreyy89

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They host three or more distinct ecosystems at different elevations.

Explanation:

I checked it, and its right.

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what do we call a solar power plant that uses mirrors to focus the light of the sun on a central point
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Concentrating solar power (CSP) plants use mirrors to concentrate the sun's energy to drive traditional steam turbines or engines that create electricity.

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Point charges of 21.0 μC and 47.0 μC are placed 0.500 m apart. (a) At what point (in m) along the line connecting them is the el
rewona [7]

Answer:

a) x = 0.200 m

b)E = 3.84*10^{-4} N/C

Explanation:

q_1 = 21.0\mu C

q_1 = 47.0\mu C

DISTANCE BETWEEN BOTH POINT CHARGE = 0.5 m

by relation for electric field we have following relation

E = \frac{kq}{x}^2

according to question E = 0

FROM FIGURE

x is the distance from left point charge where electric field is zero

\frac{k21}{x}^2 = \frac{k47}{0.5-x}^2

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\frac{0.5}{x} = 1+ \sqrt{\frac{47}{21}}

x = 0.200 m

b)electric field at half way mean x =0.25

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E = 3.84*10^{-4} N/C

6 0
3 years ago
Read 2 more answers
Find the frequency of a wave with a period of 0.5 seconds
strojnjashka [21]

Frequency of the wave is 2 per second

Explanation:

  • Frequency is the number of times waves pass at a particular point of time. Here, time period = 0.5 s
  • Frequency is given by the formula

f = 1/T, where f is the frequency and T is the time period

⇒ f = 1/0.5 = 2 per second

8 0
3 years ago
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