« previous next »

Author Question: A resistor is connected to normal 60. Hz, 120. volt AC. How many times a second does the ... (Read 35 times)

jparksx

  • Hero Member
  • *****
  • Posts: 570
on: Jul 27, 2018
A resistor is connected to normal 60. Hz, 120. volt AC. How many times a second does the instantaneous dissipated POWER reach a maximum?
 
  A) 240
  B) 0
  C) 60
  D) 30
  E) 120

Question 2

An electron is moving with speed 21. m/s.
 
  (a) What is its deBroglie wavelength?
  (b) What Diffraction Grating spacing between slits would give a 1st order maximum at 30.0?


pocatato

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 27, 2018
Answer to Question 1

E

Answer to Question 2

(a) 35. m
(b) 69. m


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

A normal pregnancy. A normal pregnancy.
Electrocardiography. (a) Electrodes are placed on the patient’s chest to record the electrical event Electrocardiography. (a) Electrodes are placed on the patient’s chest to record the electrical event
Osteoporosis. (a) A section through normal spongy bone. (b) A section through a bone with osteoporos Osteoporosis. (a) A section through normal spongy bone. (b) A section through a bone with osteoporos
The Normal Distribution of Scores for a Standardized Intelligence Test The Normal Distribution of Scores for a Standardized Intelligence Test
Identical Twin Normal Birth Position Identical Twin Normal Birth Position
Video: Hydrogen bonds - role in the body

For a complete list of videos, visit our video library