Answer:
C) С
Explanation:
'C' and 'E' are compressions.
'A' and 'D' are rarefactions.
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Answer:
The potential energy stored in the spring is 0.018 J.
Explanation:
Given;
spring constant, k = 90 N/m
extension of the spring, x = 2 cm = 0.02 m
The potential energy stored in the spring is calculated as;
U = ¹/₂kx²
where;
U is the potential energy stored in the spring
Substitute the given values in the equation above;
U = ¹/₂ x 90 N/m x (0.02 m)²
U = 0.018 J
Therefore, the potential energy stored in the spring is 0.018 J.
Answer:
15.8 N
Explanation:
The component in a given direction is the magnitude of the applied force, multiplied by the cosine of the angle between its application and the direction of interest.
The horizontal component is ...
(20 N)cos(38°) ≈ 15.8 N
Answer:
2C charge will flow from ground and cloud
Explanation:
We have given rate rate of flow of charge 
Time is given as 
WE have to find the how much charge flows between the ground and cloud in this time
So the charge flow is given by 
So 2C charge will flow from ground and cloud
Answer:
Summarized
Explanation:
Among the many hypotheses proposed for the origin of the moon the four main are summarized as
the fission hypotheses in which moon was once a part of earth but got separated due to collision. The second hypotheses is that the moon formed along with the Earth but independently.Moon was formed else where in the solar system and got captured by the Earth's gravitational pull. The newer giant impact hypotheses suggest that a mars sized object grazed Earth, Ejecting material from both Earth and itself, that material condensed to form moon.
