Eaither D or A bit I am leaning more towards D
Answer: B superconductors
Explanation:
Answer:
As Per Provided Information
Velocity of wave v is 10m/s
These ocean wave passes a stationary point every 5 s ( It's time period)
First we calculate the frequency of ocean wave .
<u>Using</u><u> Formulae</u>

here
v is the velocity of wave .

Now calculating the wavelength of the wave .
<u>Using </u><u>Formulae </u>

Substituting the value and we obtain

<u>Therefore</u><u>,</u>
- <u>Wavelength </u><u>of </u><u>the </u><u>wave </u><u>is </u><u>100 </u><u>metres</u><u>.</u>
If a = 23 and b = 45
a + b = ?
23 + 45 = 68