The forces cancel out each other because they are equal and opposite. Therefore the net force is 0 and there will be no acceleration
<span>The waves with the lowest energy and lowest frequencies of the electromagnetic spectrum are the "Radio waves"
So, option B is your answer
Hope this helps!
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If you use the stairs at normal speed, you will survive longer, and go up higher.
When going up the stairs twice as fast, you lose energy more quickly, but height would remain the same.
Answer:
θ = 30⁰
Explanation:
We have been given two wave displacement equations,
........(1)
........(2)
The waves will have same displacements when
(say)
Therefore, operating (2) - (1), we get,

or,
(since, sin 30⁰ = 0.5)
We can check the answer by putting
in equations (1) and (2),



The Gravitational Force between given objects will be ~

We know that ~

where ~
= mass of 1st object = 70 kg
= mass of 2nd object = 2000 kg
- G = gravitational constant =

- r = distance between the objects = 1 m
Let's calculate the force ~