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

Author Question: A 100-W driveway light bulb is on 10 hours per day. Assuming the power company charges 10 cents for ... (Read 10 times)

james9437

  • Hero Member
  • *****
  • Posts: 568
on: Jul 27, 2018
A 100-W driveway light bulb is on 10 hours per day. Assuming the power company charges 10 cents for each kilowatt-hour of electricity used, estimate the annual cost to operate the bulb.
 
  A) 3.65
  B) 7.30
  C) 21.40
  D) 36.50
  E) 73.00

Question 2

A wire, 0.60 m in length, is carrying a current of 2.0 A and is placed at a certain angle with respect to the magnetic field of strength 0.30 T.
 
  If the wire experiences a force of 0.18 N, what angle does the wire make with respect to the magnetic field?
  A) 20
  B) 25
  C) 30
  D) 35
  E) 60


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

succesfull

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

C


james9437

  • Hero Member
  • *****
  • Posts: 568
Reply #2 on: Jul 27, 2018
Thanks


succesfull

  • Sr. Member
  • ****
  • Posts: 339
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

The absorption of light energy by pigment molecules in the light-harvesting complex, and the path th The absorption of light energy by pigment molecules in the light-harvesting complex, and the path th
Representative Light Curves of Eclipsing Binaries Representative Light Curves of Eclipsing Binaries
Acid Rain and Power Plant Emissions Acid Rain and Power Plant Emissions
Predators adapt to extreme water pressure and the absence of light Predators adapt to extreme water pressure and the absence of light
France has produced most of its energy from nuclear power since the oil crisis of the 1970s France has produced most of its energy from nuclear power since the oil crisis of the 1970s
The distribution of the number of hours that a random sample of people spend doing chores per ... The distribution of the number of hours that a random sample of people spend doing chores per ...
Video: Polysaccharides

For a complete list of videos, visit our video library