What causes a wave to begin
1 answer:
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Answer:
78 N s
Explanation:
The impulse exerted on the ball is given by:
where
F is the magnitude of the force
is the duration of the collision
In this problem,
F = 39 N
Substituting,
Answer:
Explanation:
The star is revolving the black hole like earth revolves around the sun .so time period of rotation T is given by the following relation
T² = , R is distance between black hole and star , M is mass of black hole
Given T = 4.8 hours
4.8² =
Using the same equation for earth sun system
24² = , Ms is mass of the sun and 50R is distance between the sun and the earth .
Dividing the equation
=
= 2x 10⁻⁴