Answer:
The spring constant is 171.43 N/m.
Explanation:
compression in spring, x = 0.07 m
force, F = 12 N
Let the spring constant is K.
Use the formula of the restoring force of the spring
F = K x
12 = K (0.07)
K = 171.43 N/m
Answer:
After time 2t, the wheel will turn through an angle of 100 rad.
Explanation:
Given;
initial velocity of the wheel, 
time of motion, t = t
angular distance, θ = 25 rad
The constant angular acceleration is calculated as;
Therefore, after time 2t, the wheel will turn through an angle of 100 rad.
Answer:
mechanical energy, chemical energy, electrical energy heat energy sound energy light energy
.......
Answer:
The wavelength of the wave is tripled this can be done by reducing the frequency of the wave by factor of three.
Explanation :
The relation between the wavelength & frequency of a wave is given by
C = ν λ
Where
C - it is the velocity of light in vacuum.
ν - frequency of the wave.
λ - wavelength of the wave.
So we find that wavelength of a wave varies inversely with the frequency of a wave i.e. ν ∝ 1/λ.
Because it is something someone can be doing for him
