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

Author Question: If a virtual image is formed along the principal axis 15 cm from a concave mirror with the focal ... (Read 86 times)

tuffie

  • Hero Member
  • *****
  • Posts: 534
on: Jul 28, 2018
If a virtual image is formed along the principal axis 15 cm from a concave mirror with the focal length 15 cm, what is the object distance from the mirror?
 a. 6.0 cm
  c. 30 cm
  b. 10 cm
  d. 7.5 cm

Question 2

Suppose working outside on a hot day someone generate 450 J of heat each second. If this energy is compensated for by the evaporation of sweat, how much water would be lost in an hour? The latent heat of fusion for water is 334 kJ/kg and for vaporization is 2,200 kJ/kg.
 a. 4.85 liter
  c. 0.50 liter
  b. 0.74 liter
  d. 1.5 liter


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

scottmt

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

B


tuffie

  • Hero Member
  • *****
  • Posts: 534
Reply #2 on: Jul 28, 2018
Thanks


scottmt

  • Sr. Member
  • ****
  • Posts: 322
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Much of the dark space between stars, as seen in the sky of the image above, is due to the human eye Much of the dark space between stars, as seen in the sky of the image above, is due to the human eye
Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int
Color-enhanced magnetic resonance image (MRI) showing a sagittal view of the head. Color-enhanced magnetic resonance image (MRI) showing a sagittal view of the head.
The principal components of a spectrophotometer The principal components of a spectrophotometer
The first dark spot observed on Uranus. Image obtained by the HST ACS in 2006. The first dark spot observed on Uranus. Image obtained by the HST ACS in 2006.
Pablo Picasso, Girl before a Mirror. Pablo Picasso, Girl before a Mirror.
Video: Electrocardiogram Examination

For a complete list of videos, visit our video library