Answer:
the frequency of a wave is equal to the linear speed divided the wavelength. so in equation form.
f = v / l
where f is the frequency
v iss the linear speed
l is the wavelength
f = ( 345 m/s ) / ( 4.38 mm ) ( 1 m / 1000 mm )
f = 78767 per second
Explanation:
hope it helps
Bert would be going 34mph due to the taill winds being 6mph
Answer:
the energy absorbed is 4.477 x 10⁶ J
Explanation:
mass of the liquid, m = 13 kg
initial temperature of the liquid, t₁ = 18 ⁰C
final temperature of the liquid, t₂ = 100 ⁰C
specific heat capacity of water, c = 4,200 J/kg⁰C
The energy absorbed is calculated as;
H = mcΔt
H = mc(t₂ - t₁)
H = 13 x 4,200(100 - 18)
H = 4.477 x 10⁶ J
Therefore, the energy absorbed is 4.477 x 10⁶ J
The energy of a single photon at the transmitted frequency is 
Answer: Option b
<u>Solution:</u>
Energy of photon is given as 
Where c is the velocity of Light 
h is planck's constant 
λ is the wavelength of photon
Energy of photon can be rewritten as 
Where f is the frequency of photon
Frequency of photon is obtained by dividing velocity of light by wavelength of photon.
