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

Author Question: If a man wishes to use a plane mirror on a wall to view both his head and his feet as he stands in ... (Read 207 times)

haleyc112

  • Hero Member
  • *****
  • Posts: 600
on: Jul 28, 2018
If a man wishes to use a plane mirror on a wall to view both his head and his feet as he stands in front of the mirror, the required length of the mirror:
 a. depends on both the height of the man and the distance from the man to the mirror.
  b. is equal to the height of the man.
  c. is equal to one-half the height of the man.
  d. depends on the distance the man stands from the mirror.

Question 2

A machine gear consists of 0.40 kg of iron and 0.16 kg of copper. How much total heat is generated in the part if its temperature increases by 35C? (Specific heats of iron and copper are 450 and 390 J/kg  C, respectively.)
 a. 910 J
  c. 4000 J
  b. 8500 J
  d. 5300 J


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

diesoon

  • Sr. Member
  • ****
  • Posts: 353
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

B


haleyc112

  • Hero Member
  • *****
  • Posts: 600
Reply #2 on: Jul 28, 2018
Thank you!


diesoon

  • Sr. Member
  • ****
  • Posts: 353
Reply #3 on: Jul 28, 2018
Always glad to help...


« previous next »
 

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Top view of a cast of the LB1 skull Top view of a cast of the LB1 skull
Organs of the urinary system. This illustration is an anterior view of a female with the abdominal w Organs of the urinary system. This illustration is an anterior view of a female with the abdominal w
Skull Inferior View Labeled Skull Inferior View Labeled
Standing at the head of the table, apply oil or lotion to the entire back and shoulders with ... Standing at the head of the table, apply oil or lotion to the entire back and shoulders with ...
Cat paw mobilizing of shoulders toward the feet. Press downward along upper trapezius muscle from ... Cat paw mobilizing of shoulders toward the feet. Press downward along upper trapezius muscle from ...
Video: Neural regulation of mechanical digestion- CNS voluntary, ANS & ENS controlled involuntary movements

For a complete list of videos, visit our video library