a vector is inclined at 45 degree North of east
so here we can say
here we can say that
East direction is along x direction
North direction is along Y direction
so here the given direction in vector form as
so here the given direction is in vector form shown as above
The answer is; light waves, sound waves, and ocean waves.
Light waves come from the sun as electromagnetic transverse waves while the sound and oceans waves are mechanical waves. We interact with these very regulary in our lifetime. All these waves share the property of having frequencies, wavelengths and amplitudes.
Answer:
17.86 m
Explanation:
The first step is to find the velocity of the swimmer.
Velocity, v = s/t
Velocity, v = 5 / 0.27
Velocity, v = 18.52 m/s
Then, we find the height
h = ½gt²
h = ½ * 9.8 * 0.27²
h = 4.9 * 0.0729
h = 0.36 m
Next, we apply the law of conservation of energy
mgH = mgh + ½ mv²
9.8Hm = m(9.8 * 0.36 + 0.5 * 18.52²)
9.8H = 3.528 + 171.4952
9.8H = 175.02
H = 175.02 / 9.8
H = 17.86 m
Therefore, the needed height is 17.86 m
Answer:
So then the rank for this case would be:
And makes sense since if we have a higher frequency we expect a lower wavelength by the inversely proportional relationship between the frequency and the wavelength.
Explanation:
For this case we can use the property that the speed of the sound is:
By definition the frequency is given by this formula:
Where f represent the frequency, v the velocity and the waelength. If we solve for the wavelength we got:
Now if we find the wavlengths for each of the following cases we have:
So then the rank for this case would be:
And makes sense since if we have a higher frequency we expect a lower wavelength by the inversely proportional relationship between the frequency and the wavelength.