Answer:
C) Amplitude.
Explanation:
By definition, the amplitude of wave is defined as the distance from the rest position to the highest or lowest point of the wave.
The highest and lowest points of the wave are called crests and troughs respectively; Therefore, the amplitude of the waves is also said to be the height of the wave from its rest position to its crest—and also the height of the from the rest position it its trough.
This means Choice C (amplitude) is the correct term used to describe the height of a wave from its rest position to its crest.
<em>P.S: Choice A, the crest height, can also be the correct term, but the term ''amplitude'' is often used and is more technical. </em>
<span> the unequal heating of Earth's surface, your answer would be A</span>
Answer:
990 J
Explanation:
Kinetic energy is:
KE = ½ mv²
Given m = 55 kg and v = 6 m/s:
KE = ½ (55 kg) (6 m/s)²
KE = 990 J
Answer:
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Answer:
The net charge is
Solution:
As per the question:
Mass of the plastic bag, m = 12.0 g =
Magnitude of electric field, E =
Angle made by the string,
Now,
To calculate the net charge, Q on the ball:
Vertical component of the tension in the string,
Horizontal component of the tension in the string,
Now,
Balancing the forces in the x-direction:
(1)
Balancing the forces in the y-direction:
where
g = acceleration due to gravity =
Thus
Use T = 0.1357 N in eqn (1):