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
Ainat [17]
3 years ago
15

And object is 20 cm from the lens. The image from 6.66667 cm from the length. What is the focal length of the lens? Use the thin

lens equation

Biology
1 answer:
natita [175]3 years ago
5 0

Answer:

5

Explanation:

The object distance Is 20 I'm

The image distance is 6.666

Therefore the focal length can be calculated as follows

1/f = 1/20 + 1/6.66

= 6.66+20/133.2

= 26.66/133.2

1/f= 26.66/133.2

f = 133.2/26.66

= 4.99

= 5

Hence the focal length is 5

You might be interested in
A puff of air to the eye causes a reflexive blink. If you precede the puff of air with a buzzer, eventually the buzzer will caus
Brums [2.3K]

There are options for this question they are:

a) neutral stimulus; conditioned stimulus

b) conditioned stimulus; neutral stimulus

c) unconditioned stimulus; conditioned stimulus

d) neutral stimulus; unconditioned stimulus

e) unconditioned stimulus; neutral stimulus

The correct answers are - In this example, the buzzer begins as the neutral stimulus and eventually becomes the conditioned stimulus. The buzzer initially is a neutral stimulus because it have no role to play in the blinking response. Eventually though through learned association the buzzer becomes a conditioned stimulus because you now associate it with a puff of air to the eye which in turn causes you to blink.

5 0
3 years ago
Healthy bones, teeth, and muscles require the mineral?
Drupady [299]
Calcium is few of the main sources for healthy bones, teeth, and muscles. 

3 0
3 years ago
Read 2 more answers
An energy pyramid is shown below. which level of the pyramid will be able to support the greatest number of organisms?
Marta_Voda [28]
The answer is the one which contains plants
6 0
3 years ago
Which statement about water is correct? and why?
PtichkaEL [24]

Answer:

A

Explanation:

ice's density is lower that water's density

8 0
3 years ago
write one clear sentence using all the words in the set that demonstrates your understanding of their relationship here are the
SIZIF [17.4K]

Answer:

Microtubules have shapes like a spindle and are arranged to form centrosome and a cluster of such microtubules form centriole.

Explanation:

Microtubules are seen in eukaryotic cells to give shape and structure to the cells and they form part of the cytoskeleton. They are known to grow long and are dynamic. Centrosomes are known to be main microtubule that are found in animal cells. They are organelles that are made from the arrangement of clusters of microtubules. The centrioles are organized microtubules that actually help to serve as skeletal system of the cell. These centrioles  help to determine the locations of the nucleus.

6 0
2 years ago
Other questions:
  • All living organisms on Earth are similar because they:
    8·1 answer
  • Where does a nurse expect to hear bronchovesicular lung sounds in a healthy adult?
    10·1 answer
  • In what part of the cell cycle does the DNA make a copy of itself?
    11·1 answer
  • Which two substances need to react to produce the brown colored benzoquinone
    9·1 answer
  • How is nitrogen fixation related to nitrification?
    15·1 answer
  • Which traits do baboons have?
    8·2 answers
  • Does this karyotype help you determine the parentage of the cubs?
    15·1 answer
  • Answer all of them please ty
    14·2 answers
  • 1. write a sentence that describes how the food changes in the stomach.
    5·1 answer
  • People who don't believe humans are causing global warming argue it might be caused by...
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!