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

Author Question: If a virtual image is formed 8.00 cm along the principal axis from a convex mirror of focal length ... (Read 43 times)

ereecah

  • Hero Member
  • *****
  • Posts: 530
on: Jul 28, 2018
If a virtual image is formed 8.00 cm along the principal axis from a convex mirror of focal length 15.0 cm, how far is the object from the mirror?
 a. 30.0 cm
  c. 3.00 cm
  b. 6.00 cm
  d. 17.1 cm

Question 2

Two stars, A and B, have the same emissivity, but the radii and surface temperatures are different with RA = 2 RB, and TA = 0.5 TB. Assuming the temperature of space to be negligible, which star radiates the most energy per unit time?
 a. Star A
  b. Star B
  c. Both radiate the same amount of energy per unit time.
  d. More information is needed in order to make a determination.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ashely1112

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

B


ereecah

  • Member
  • Posts: 530
Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

recede

  • Member
  • Posts: 315
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

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?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

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?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Image of phacopidan trilobite Calymene tristani in nodule. Image of phacopidan trilobite Calymene tristani in nodule.
Normal development of posture and spinal curves. (A) Toddler: Protruding abdomen; lumbar lordosis. ( Normal development of posture and spinal curves. (A) Toddler: Protruding abdomen; lumbar lordosis. (
Mirror Box Therapy Compared to Mental Visualization and a Control Condition Mirror Box Therapy Compared to Mental Visualization and a Control Condition
Bones do not allow the X-ray beam to pass through them, resulting in an image of the bones on the ... Bones do not allow the X-ray beam to pass through them, resulting in an image of the bones on the ...
Rotating a matrix along the x-axis multiplication Rotating a matrix along the x-axis multiplication
Video: Biological organic compounds

For a complete list of videos, visit our video library