Answer:
The wavelength is
The wave number is
The wave function is
Explanation:
From the question we are told that
The frequency of the sound wave is
The speed of the wave is
The wavelength of the wave is mathematically evaluated as
substituting values
The wave number is mathematically represented as
substituting values
The general form of wave function is
given that the amplitude is
While which is the angular velocity is represented as
and k which is the angular wave number is mathematically represented as
The wave function becomes
substituting values
Answer:
To drive at high speed around an unbanked horizontal curve on the earth.
Explanation:
Garvitational pull on on eart is 6 times more than on the moon. On. Earth, the vehicle will have more grip on the surface due to its weight. This grip will reduce its tendency to skid off the horizontal curve when compared to driving in the same unbanked horizontal curve on the moon.
Use the Inverse square law, Intensity (I)<span> of a light </span>is inversely proportional to the square of the distance(d).
I=1/(d*d)
Let Intensity for lamp 1 is L1 distance be D1 so on, L2 D2 for Intensity for lamp 2 and its distance.
L1/L2=(D2*D2)/(D1*D1)
L1/15=(200*200)/(400*400)
L1=15*0.25
L1=3.75 <span>candela</span>