Answer:
In the picture
Explanation:
I hope that it's a clear solution and explanation, hope that helps.
A. To find work we need to know F and S; to find power we need to know F and V
Answer:
129.74 Hz
Explanation:
Given:
Wave velocity ( v ) = 346 m / sec
wavelength ( λ ) = 2.69 m
We have to calculate Frequency ( f ) :
We know:
v = λ / t [ f = 1 / t ]
v = λ f
= > f = v / λ
Putting values here we get:
= > f = 346 / 2.69 Hz
= > f = 34600 / 269 Hz
= > f = 129.74 Hz
Hence, frequency of sound is 129.74 Hz.
Answer:
angular resolution = 0.07270° = 1.269 ×
rad
greatest distance from the camera = 118.20 m = 0.118 km
Explanation:
given data
diameter = 0.50 mm = 0.5 ×
m
distance apart = 15 cm = 15×
m
wavelength λ = 520 nm = 520 ×
m
to find out
angular resolution and greatest distance from the camera
solution
first we expression here angular resolution that is
sin θ =
.......................1
put here value λ is wavelength and d is diameter
we get
sin θ =
θ = 0.07270° = 1.269 ×
rad
and
distance from camera is calculate here as
θ =
.................2
I = 
I = 118.20 m = 0.118 km
The type of friction this is are Kinetic friction!