Option D
The resistance in machine is 8.5 ohms
<em><u>Solution:</u></em>
Given that,
Power = 1700 W
Voltage = 120 V
We have to find the resistance in machine
<em><u>The formula used is:</u></em>
Where,
"P" is the electric power and "V" is the voltage and "R" is the resistance
<em><u>Substituting the given values we get,</u></em>
Thus resistance in machine is 8.5 ohms
Answer:
Since this is old, hope you don't mind if I scoop up these points
Explanation:
Answer: The charge that flows during the change is 0.2C
Explanation: Please see the attachments below
Answer:
<em>b. At twice the distance, the electric potential is V/2</em>
Explanation:
Electric potential
Is the amount of work needed to move a unit charge from a reference point (usually a point at infinity) without producing acceleration.
The electric potential due to a point charge q at a distance r is given by
Where K is the Coulomb's constant. If we know the electric potential at a certain distance is V, if the distance is changed to 2r, then the new potential is
It means that the electric potential is half the previous value. Correct option: b.
Answer:
<em>The speed of the stream of air flowing through the leak is 340.754 m/sec</em>
Explanation:
Carefully applying the Bernoulli's equation the speed of the leak can be obtained. The attached images show step by step explanation of the question, while applying the Bernoulli's equation;