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

Author Question: An ac signal at a certain frequency is applied across a 40-mH inductor and a 100- resistor. If the ... (Read 38 times)

melina_rosy

  • Hero Member
  • *****
  • Posts: 531
on: Jul 29, 2018
An ac signal at a certain frequency is applied across a 40-mH inductor and a 100- resistor. If the power factor of this circuit is 0.40, what is the value of the frequency?
 
  A) 160 Hz
  B) 200 Hz
  C) 410 Hz
  D) 600 Hz
  E) 910 Hz

Question 2

A 4.20-g bullet embeds itself in a 20.0-kg block, which is attached to a horizontal spring with a force constant of 950 N/m. The maximum compression of the spring is 2.10 cm. What is the speed of the bullet just before it hits the block?
 
  A) 690 m/s
  B) 700 m/s
  C) 672 m/s
  D) 900 m/s
  E) 952 m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cam1229

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 29, 2018
Answer to Question 1

E

Answer to Question 2

A


melina_rosy

  • Hero Member
  • *****
  • Posts: 531
Reply #2 on: Jul 29, 2018
Thanks


cam1229

  • Sr. Member
  • ****
  • Posts: 329
Reply #3 on: Jul 29, 2018
Welcome :)


« previous next »
 

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Signal amplification Signal amplification
A signal transduction pathway involving diacylglycerol (DAG), inositol trisphosphate (IP3), and chan A signal transduction pathway involving diacylglycerol (DAG), inositol trisphosphate (IP3), and chan
Paland and Lynch demonstrated the importance of sexual reproduction in reducing the frequency of mal Paland and Lynch demonstrated the importance of sexual reproduction in reducing the frequency of mal
A meter lead connected to a T-pin that was gently pushed along the signal wire of the TP sensor ... A meter lead connected to a T-pin that was gently pushed along the signal wire of the TP sensor ...
Flow chart for the diagnosis of hepatitis C. Hepatitis C reporting using the signal-tocutoff ratio. Flow chart for the diagnosis of hepatitis C. Hepatitis C reporting using the signal-tocutoff ratio.
Frequency of X-Linked Recessive Traits in Males and Females Frequency of X-Linked Recessive Traits in Males and Females
Video: DNA Replication

For a complete list of videos, visit our video library