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laiz [17]
3 years ago
10

How to light prodeced by nature

Physics
1 answer:
frutty [35]3 years ago
4 0
Natural sources of light include our sun and other stars, where the source of energy is nuclear energy (recall that the moon does not produce light but merely reflects sunlight), lightning, where the source is electrical, and fire, where the energy source is chemical.
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A driver travels 225 miles in 4 hours and 30 minutes. What was his average speed in mph?
andrew-mc [135]

Answer:

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3 years ago
Name two ways to reduce friction and two ways to increase it.
Maurinko [17]
Ways to increase friction 

<span>- increase the roughness of the contact materials </span>
<span>- increase the pressure on the contact </span>


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3 years ago
Convert 278000 into scientific notation
nirvana33 [79]

2.78 X 10^5 is the best answer to be responded to

8 0
3 years ago
Read 2 more answers
Two particles move along an x axis. The position of particle 1 is given by x ! 6.00t 2 # 3.00t # 2.00 (in meters and seconds); t
s344n2d4d5 [400]

Answer:

15.6m/s

Explanation:

V1=\frac{dx}{dt}=\frac{d}{dt}(6t^{2}+3t+2) because the derivate of the position is the velocity

V1=12t+3

V2=20+\int\limits^_ {} \,-8t because the integral of the acceleration is the velocity

V2=20-4t^{2}

V1=V2 to see when the velocities of particles match

12t+3=20-4t^2

4t^2+12t-17=0 we resolve this with \frac{-b+-(\sqrt{b^{2} -4ac} )}{2a}

and we take the positif root

t=1.05 sec

if we evaluate the velocity (V1 or V2) the result is 15.6m/s

7 0
3 years ago
A light wave with a long wavelength has _____ energy.
Schach [20]
Less energy your welcome
5 0
2 years ago
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