1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
irinina [24]
3 years ago
5

Light of intensity 2.00 W/m2 passes through the pupil of one of your eyes and eventually falls on your retina. The radius of the

pupil is controlled by the iris. In a human eye, the radius of the pupil can vary from about 1.0 mm to about 3.5 mm. The area of the opening can be calculated from pi (3.1416) times the radius squared. If your pupil is open to a radius of 2.5 mm, how much light energy passes through in one minute
Physics
1 answer:
lord [1]3 years ago
3 0

Answer:

Explanation:

Intensity of light, I = 2 W/m²

radius of pupil open, r = 2.5 mm = 2.5 x 10^-3 m

time, t = 1 min = 60 second

Energy passes, E = intensity x area x time

E = 2 x 3.14 x 2.5 x 2.5 x 10^-6 x 60

E = 2.36 x 10^-3 Joule

You might be interested in
A student is conducting a physics experiment and rolls four different-
joja [24]

Answer:

<em>I think the answer is C</em>

<em />

Explanation:

Its heavy but not too heavy

4 0
2 years ago
Amber moves from her desk to the door in 17 seconds. Her speed changes from rest to 5 m/s. What is Amber's average acceleration?
VMariaS [17]
Vf - vi/ time
5 - 0/17
0.29 m/s square
4 0
2 years ago
Find the mean of set values 12g 9g 13g 12g 20g 17g 15g
nalin [4]

{\huge{\boxed{\mathcal{\green{Answer}}}}} \\ \frac{12 + 9 + 13 + 12 + 20 + 17 + 15}{7}  \\  =  \frac{98}{7}  \\  = 14 \\ {\huge{\boxed{\mathcal{\green{Hope \: it \: Helps}}}}}

5 0
2 years ago
How has technology influenced theories over time?
Contact [7]
Better technology is helping us because we can see more stuff like the microscope we able to make assumptions based on what we saw.  
7 0
3 years ago
What are the components of the "Earth Radiation Budget?"
Alex777 [14]

Answer:

The energy entering, reflecting, absorbed, and emitted by the earth system are the components of the Earth's radiation budget.

Explanation:

I hope this helps also I hope you have a great day and a new year.

4 0
2 years ago
Other questions:
  • What is the name for the clockwise deflection of air in the cells near the poles?
    5·1 answer
  • What is the force, in units of femtoNewtons, on an electron moving at a velocity of 7.26 x 106 ms-1 perpendicularly to a magneti
    9·1 answer
  • Sr-90 has a half-life of T1/2 = 2.85 a (years). How much Sr-90 will remain in a 5.00 g sample after 5.00 a? Show all of your wor
    15·1 answer
  • The vertical motion of mass A is defined by the relation x 5 10 sin 2t 1 15 cos 2t 1 100, where x and t are expressed in millime
    5·1 answer
  • A pitcher exerts 100.0 N of force on a ball with a velocity of 45 m/s. What is the pitcher's power?
    7·1 answer
  • If you weigh 690n on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun and
    14·1 answer
  • Which colors are contained in white light?
    7·2 answers
  • How are the terms atom and element related
    15·2 answers
  • A body of mass 36 g moves with SHM of amplitude A = 13 cm and period T = 12 s. At
    7·1 answer
  • Radioactive iodine (radioiodine) is given to patients with some forms of thyroid cancer in order to destroy the cancer cells. 13
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!