Using a rope that will snap if the tension in it exceeds 379 N, you need to lower a bundle of old roofing material weighing 473
1 answer:
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Answer:
The total momentum is zero.
Explanation:
This problem can be solved by applying the momentum conservation theorem and the amount of motion. This theorem tells us that the amount of motion is conserved before and after a collision.
In the next equation, we will write to the left of the equal sign the amount of motion before the collision and to the right the amount of motion after the collision.
where:
P₁ = momentum of the ball moving to the right, before the collision = 85 [kg*m/s]
P₂ = momentum of the ball moving to the left, before the collision = - 85 [kg*m/s]
P₃ = Final momentum after the collision [kg*m/s]
There is no movement of any of the balls, they remain at rest after the impact.
Answer:
Explanation:
= Refractive index of bubble = 1.33
f = Frequency of light =
c = Speed of light =
The wavelength of light is given by
Wavelength is also given by
m = 1 for minimum thickness
The minimum thickness is