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

Author Question: A 60. gram toy rocket achieves a speed of 80. m/s after 3.0 s, when fired straight up. What is the ... (Read 94 times)

chandani

  • Hero Member
  • *****
  • Posts: 541
on: Jul 27, 2018
A 60. gram toy rocket achieves a speed of 80. m/s after 3.0 s, when fired straight up. What is the average total force on the rocket during the 3 s?
 
  A) 3.4 N
  B) 1.6 N
  C) 2.2 N
  D) 3.2 N
  E) 1.2 N

Question 2

Explain what happens when the angular speed of the coil in an electric generator is increased.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

duy1981999

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

When the angular speed of the coil in an electric generator is increased, the rate at which the magnetic flux changes increases as well. As a result, the magnitude of the induced emf produced by the generator increases. Of course, the frequency of the induced emf increases as well.


chandani

  • Member
  • Posts: 541
Reply 2 on: Jul 27, 2018
:D TYSM

JCABRERA33

  • Member
  • Posts: 344
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

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 cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Gram negative flowchart Gram negative flowchart
This lithograph by Currier and Ives gives an erroneous impression of the “battle.” Major Robert Ande This lithograph by Currier and Ives gives an erroneous impression of the “battle.” Major Robert Ande
A flat-tip (straight-blade) screwdriver. The width of the blade should match the width of the slot ... A flat-tip (straight-blade) screwdriver. The width of the blade should match the width of the slot ...
Gliding Phoenix. Beginning position: Legs straight and together, arms at sides of body. 1. Rise up ... Gliding Phoenix. Beginning position: Legs straight and together, arms at sides of body. 1. Rise up ...
At what speed does Grogzetti need to take the curve to avoid sliding? At what speed does Grogzetti need to take the curve to avoid sliding?
A photon whose wavelength is = 5.0 10-11 m is scattered straight backward. What is the ... A photon whose wavelength is = 5.0 10-11 m is scattered straight backward. What is the ...
Video: Dorsal Recumbent Position

For a complete list of videos, visit our video library