Kinetic energy....
1 answer:
Explanation:
Given parameters:
mass of bullet 1 = 0.0014kg
velocity of bullet 1 = 396m/s
mass of bullet 2 = 7.1 x 10⁷kg
velocity of bullet 2 = 13m/s
Unknown;
Comparing the kinetic energy
Solution:
Kinetic energy is the energy due to the motion of a body.
K.E = m v
bullet 1:
K.E = x 0.0014 x 396
= 109.8J
bullet 2:
K.E = 7.1 x 10⁷ x 13
= 6 x 10⁹J
The second bullet has more kinetic energy than the first one.
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Kinetic energy brainly.com/question/6536722
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The capacitive reactance is reduced by a factor of 2.
<h3>Calculation:</h3>We know the capacitive reactance is given as,
where,
= capacitive reactance
f = frequency
C = capacitance
It is given that frequency is doubled, i.e.,
f' = 2f
To find,
=?
Therefore, the capacitive reactance is reduced by a factor of 2.
I understand the question you are looking for is this:
A capacitor is connected across an AC source. Suppose the frequency of the source is doubled. What happens to the capacitive reactant of the inductor?
- The capacitive reactance is doubled.
- The capacitive reactance is traduced by a factor of 4.
- The capacitive reactance remains constant.
- The capacitive reactance is quadrupled.
- The capacitive reactance is reduced by a factor of 2.
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