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 251 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?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

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
Cervical cancer (a) Top view of the uterus showing the presence of a tumor in the wall of the cervix Cervical cancer (a) Top view of the uterus showing the presence of a tumor in the wall of the cervix
Alexander the Great, head from a Pergamene copy. Alexander the Great, head from a Pergamene copy.
The bridging ability of IgM: (a) Pictorial view of IgM bridging of red cells. (b) Macroscopic view ... The bridging ability of IgM: (a) Pictorial view of IgM bridging of red cells. (b) Macroscopic view ...
Finish with bilateral stroking to the entire back. Stand at head of the table with fingers pointing ... Finish with bilateral stroking to the entire back. Stand at head of the table with fingers pointing ...
Video: Elementary kinetics

For a complete list of videos, visit our video library