This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A 1.50-H inductor is connected in series with a 200- resistor through an ideal 15.0-V dc power ... (Read 51 times)

V@ndy87

  • Hero Member
  • *****
  • Posts: 571
on: Jul 29, 2018
A 1.50-H inductor is connected in series with a 200- resistor through an ideal 15.0-V dc power supply and an open switch. How much energy is contained in the inductor 20.0 ms after closing the switch?
 
  A) 5.48 mJ B) 0.910 mJ C) 7.31 mJ D) 3.65 mJ E) 1.83 mJ

Question 2

An amateur astronomer grinds a double convex lens whose surfaces have radii of curvature of magnitudes 40 cm and 60 cm. The glass has an index of refraction of 1.54. What is the focal length of this lens when used in the night air?
 
  A) 220 cm B) 43 cm C) 130 cm D) 89 cm E) 44 cm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Laurenleakan

  • Sr. Member
  • ****
  • Posts: 309
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

E


V@ndy87

  • Member
  • Posts: 571
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

coreycathey

  • Member
  • Posts: 333
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Eleanor Antin, Constructing Helen, from the series Helen's Odyssey. Eleanor Antin, Constructing Helen, from the series Helen's Odyssey.
Wind, solar, biomass, and geothermal power account for less than 1% of global power generation Wind, solar, biomass, and geothermal power account for less than 1% of global power generation
Politics, Power and the Common Good: An Introduction to Political Science, 5/E Politics, Power and the Common Good: An Introduction to Political Science, 5/E
Find the voltage, current and power for each resistor in the circuit below Find the voltage, current and power for each resistor in the circuit below
Differentiate each function with respect to x. (Power rule) Differentiate each function with respect to x. (Power rule)
Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ... Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ...
Video: Introduction to Herpes

For a complete list of videos, visit our video library