In order to test an intentionally weak adhesive, the bottom of the small 0.15-lb block is coated with adhesive and then the bloc
1 answer:
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Explanation:
Let the speeds of father and son are . The kinetic energies of father and son are
. The mass of father and son are
(a) According to given conditions,
And
Kinetic energy of father is given by :
.............(1)
Kinetic energy of son is given by :
...........(2)
From equation (1), (2) we get :
..............(3)
If the speed of father is speed up by 1.5 m/s, so the ratio of kinetic energies is given by :
Using equation (3) in above equation, we get :
(b) Put the value of in equation (3) as :
Hence, this is the required solution.
Answer:
Explanation:
The amplitude of he combined wave is:
A, is the amplitude from the identical harmonic waves
B, is the amplitude of the resultant wave
θ, is the phase, between the waves
The amplitude of the combined wave must be 0.6A: