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1 year ago

14

A circuit with a 60 V battery, a 7 Ω resistor, a resistor with 0.2 A across it, and another 7 Ω resistor in series. What is the

resistance of the unknown resistor?

1 answer:

skelet666 [1.2K]1 year ago

8 0

Answer:

28.6 ohm

Explanation:

there is a 3rd resistor in series. voltage drop across the resistors will be equal to 60v

7*.2+7*.2 +.2x = 60

2.8+.2x = 60

.2x = 57.2

x = 28.6

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Read 2 more answers

011 10.0 points

Ulleksa [173]

Answer:

2.47 m

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Let's calculate first the time it takes for the ball to cover the horizontal distance that separates the starting point from the crossbar of d = 52 m.

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$y=u_y t - \frac{1}{2}gt^2$

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$y=(14.7)(2.56) - \frac{1}{2}(9.8)(2.56)^2=5.52 m$

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