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

Author Question: If the electric field is halved in a region of space, what happens to the electric field energy in a ... (Read 143 times)

geodog55

  • Hero Member
  • *****
  • Posts: 530
on: Jul 28, 2018
If the electric field is halved in a region of space, what happens to the electric field energy in a 10 cm3 volume of this space.
 a. It quadruples.
  c. It halves.
  b. It becomes one fourth as much.
  d. It doubles.

Question 2

A 0.20-m radius grinding wheel starts at rest and develops an angular speed of 12.0 rad/s in 4.0 s. What is the average tangential acceleration of a point on the wheel's edge?
 a. 0.45 m/s2
  c. 28 m/s2
  b. 0.60 m/s2
  d. 14 m/s2


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

trog

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

B


geodog55

  • Member
  • Posts: 530
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

Alyson.hiatt@yahoo.com

  • Member
  • Posts: 354
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Energy of reactant molecules. Energy of reactant molecules.
SPE densitometry showing an M spike in the gamma region. SPE densitometry showing an M spike in the gamma region.
Cuba’s Energy Geopolitics Cuba’s Energy Geopolitics
Region’s Culture in International Context Region’s Culture in International Context
The demand for energy is met by burning coal and other fossil fuels The demand for energy is met by burning coal and other fossil fuels
The mitochondrion is the center of energy transformation in the cell The mitochondrion is the center of energy transformation in the cell
Video: Reflex arc construction

For a complete list of videos, visit our video library