Answer;
3.45 × 10^-1
Explanation;
-Here we wish to write the number 0.345 as a coefficient times 10 raised to an exponent. To convert to scientific notation, start by moving the decimal place in the number until you have a coefficient between 1 and 10; here it is 3.45.
-The number of places to the left that you had to move the decimal point is the exponent.
= 0.345
= 3.45/10
= 3.45 × 10^-1
The energy of an ultraviolet photon is 2.6 times greater than a red photon.
<h3>
Energy of a photon</h3>
The energy of a given photon of light is calculated using the wavelength and the speed of light.
<h3>Energy of a red photon</h3>
The energy of the a red photon at the given wavelength is calculated as follows;
<h3>Energy of an ultraviolet photon</h3>
<h3>The ratio of the two energies</h3>
Thus, the energy of an ultraviolet photon is 2.6 times greater than a red photon.
Learn more about energy of a photon here: brainly.com/question/7464909
Answer:
Angular displacement before it stops = 18 rev
Explanation:
Given:
Speed of fan w(i) = 6 rev/s
Speed of fan (Slow) ∝ = 1 rev/s
Final speed of fan w(f) = 0 rev/s
Find:
Angular displacement before it stops
Computation:
w(f)² = w(i) + 2∝θ
0² = 6² + 2(1)θ
0 = 36 + 2θ
2θ = -36
Angular displacement before it stops = -36 / 2
θ = -18
Angular displacement before it stops = 18 rev
