In the simulation, there are three balls on the floor. Drag each of them up off the floor, and then let go. See what happens to
1 answer:
Answer:
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A way the balls behave the same way is by bouncing about 1 time after throwing the balls up. A way the balls act differently is the blue ball is bouncier than all the balls, the red ball bounces about 2 times before stopping, and the green ball doesn’t really bounce except for one time.
Explanation:
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Answer:
<em>a) 0.72 V</em>
<em>b) 19.2 mA</em>
<em>c) 2.304 Watts</em>
Explanation:
A transformer is used to step-up or step-down voltage and current. It uses the principle of electromagnetic induction. When the primary coil is greater than the secondary coil, the it is a step-down transformer, and when the primary coil is less than the secondary coil, the it is a step-up transformer.
number of primary turns = = 500 turns
input voltage = = 120 V
number of secondary turns = = 3 turns
output voltage = = ?
using the equation for a transformer
substituting values, we have
= 360/500 =<em> 0.72 V</em>
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b) by law of energy conservation,
where
= input current = ?
= output voltage = 3.2 A
= output voltage = 0.72 V
= input voltage = 120 V
substituting values, we have
120 = 3.2 x 0.72
120 = 2.304
= 2.304/120 = 0.0192 A
= <em>19.2 mA</em>
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c) power input =
==> 0.0192 x 120 = <em>2.304 Watts</em>