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

Author Question: Two plane mirrors make an angle of 50 with one another. A ray of light parallel to mirror 1 reflects ... (Read 77 times)

mydiamond

  • Hero Member
  • *****
  • Posts: 804
on: Jul 28, 2018
Two plane mirrors make an angle of 50 with one another. A ray of light parallel to mirror 1 reflects off mirror 2 and then strikes mirror 1 . What is the angle of incidence the ray makes with mirror 1?
 a. 50
  c. 40
  b. The answer is not given.
  d. 55

Question 2

A slice of bread contains about 90 kcal. If specific heat of a person were 1.00 kcal/kgC, by how many C would the temperature of a 70.0-kg person increase if all the energy in the bread were converted to heat?
 a. 2.25C
  c. 1.43C
  b. 1.86C
  d. 1.29C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

billybob123

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

D


mydiamond

  • Member
  • Posts: 804
Reply 2 on: Jul 28, 2018
Excellent

abro1885

  • Member
  • Posts: 337
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

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.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Technique of Light Palpation Technique of Light Palpation
The Speed of Light Is Constant The Speed of Light Is Constant
Massage the feet. Finish with light connecting strokes over the entire leg. Redrape the leg. Massage the feet. Finish with light connecting strokes over the entire leg. Redrape the leg.
How Chemical Engineer Make a Orange How Chemical Engineer Make a Orange
Finding the angle from a ratio Finding the angle from a ratio
Two objects in a pulley on an inclined plane Two objects in a pulley on an inclined plane
Video: hGH (protein synthesis, growth and development)

For a complete list of videos, visit our video library