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Author Question: If a lamp has resistance of 120 W when it operates at 200 W, what is the applied voltage? a. 120 V ... (Read 20 times)

rmenurse

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on: Jul 28, 2018
If a lamp has resistance of 120 W when it operates at 200 W, what is the applied voltage?
 a. 120 V
  c. 110 V
  b. 220 V
  d. 155 V

Question 2

A uniform solid sphere rolls down an incline of height 3 m after starting from rest. In order to calculate its speed at the bottom of the incline, one needs to know:
 a. the mass of the sphere.
  c. the mass and the radius of the sphere.
  b. the radius of the sphere.
  d. no more than is given in the problem.


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Bigfoot1984

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Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

D


rmenurse

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Reply 2 on: Jul 28, 2018
Excellent

duy1981999

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Reply 3 on: Yesterday
Gracias!

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