« previous next »

Author Question: A resistor is connected to normal 60. Hz, 120. volt AC. How many times a second does the ... (Read 14 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?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

A comparison between chromosomes found in a normal human cell and a cancer cell from the same person A comparison between chromosomes found in a normal human cell and a cancer cell from the same person
People have seen patterns in the stars since ancient times.[5] This 1690 depiction of the constellat People have seen patterns in the stars since ancient times.[5] This 1690 depiction of the constellat
Normal ECG tracing. Normal ECG tracing.
Normal oxygen sensor frequency is from about one to five times per second. Normal oxygen sensor frequency is from about one to five times per second.
The throttle pedal is connected to the accelerator pedal position (APP) sensor. The electronic ... The throttle pedal is connected to the accelerator pedal position (APP) sensor. The electronic ...
A solution of CaCl2 with concentration of 5.5 M was diluted 10 times, 25 times and 3 times. ... A solution of CaCl2 with concentration of 5.5 M was diluted 10 times, 25 times and 3 times. ...
Video: Glucose anabolism reactions: Glycogenolysis and Gluconeogenesis

For a complete list of videos, visit our video library