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

Author Question: A machinist with normal vision has a near point at 25 cm. The machinist wears eyeglasses in order to ... (Read 147 times)

jessicacav

  • Hero Member
  • *****
  • Posts: 558
on: Jul 29, 2018
A machinist with normal vision has a near point at 25 cm. The machinist wears eyeglasses in order to do close work. The power of the lenses is +1.75 diopters. With these eyeglasses, what is the near point of the machinist?
 
  A) 24 cm B) 14 cm C) 21 cm D) 17 cm E) 10 cm

Question 2

What is the net power radiated by a little animal with a surface area of 0.075 m2 if his emissivity is 0.75, his skin temperature is 315 K, and he is in a room with a temperature of 290 K? ( = 5.67  10-8 W/m2  K4 )
 
  A) 8.8 W
  B) 6.0 W
  C) 8.0 W
  D) 15 W
  E) 18 W


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

katieost

  • Sr. Member
  • ****
  • Posts: 358
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

A


jessicacav

  • Hero Member
  • *****
  • Posts: 558
Reply #2 on: Jul 29, 2018
TY


katieost

  • Sr. Member
  • ****
  • Posts: 358
Reply #3 on: Jul 29, 2018
You're welcome


« previous next »
 

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

A very high-resolution texture of the Moon, including a normal map A very high-resolution texture of the Moon, including a normal map
Normal Breath Sounds Normal Breath Sounds
The leaky-barrel model: a settling-point model of eating and body weight homeostasis. The leaky-barrel model: a settling-point model of eating and body weight homeostasis.
How to use Cramer's rule to solve a second-order determinant (Question 1) How to use Cramer's rule to solve a second-order determinant (Question 1)
. Calculate the net electric field at point B . Calculate the net electric field at point B
Normal red blood cells (round) and sickled red blood cells Normal red blood cells (round) and sickled red blood cells
Video: Hormonal regulation of blood pressure - RAA system

For a complete list of videos, visit our video library