7. If the diameter of the field of view when using the 4x objective is 3 mm, what is the area of the field of view when using the 4X, 10X, and 40X objectives

Answers

Answer 1

Answer:

Using 4X view =

1.767 x 4 = 7.068mm

Using  10X view

1.767 x 10 = 17.67mm

Using 40X view

1.767 x 40 = 70.68mm.

Explanation:

If the diameter when using 4x objective = 3mm

then the original diameter = 3/4 = 0.75 mm

The diameter of the field is 0.75 mm

Area of a circle = pie/4 x diameter square

pie = 22/7 or 3.14

diameter = 0.75

The area of the field

3.14 x 0.75 2 =

3.14 x 0.5625=

1.767mm.

The original area of the field = 1.767mm

Using 4X view =

1.767 x 4 = 7.068mm

Using  10X view

1.767 x 10 = 17.67mm

Using 40X view

1.767 x 40 = 70.68mm.


Related Questions

PLEASE HELP!!!!! Describe in detail the process of dna replication

Answers

Answer:

DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. The replication process relies on the fact that each strand of DNA can serve as a template for duplication. DNA replication initiates at specific points, called origins, where the DNA double helix is unwound. A short segment of RNA, called a primer, is then synthesized and acts as a starting point for new DNA synthesis. An enzyme called DNA polymerase next begins replicating the DNA by matching bases to the original strand. Once synthesis is complete, the RNA primers are replaced with DNA, and any gaps between newly synthesized DNA segments are sealed together with enzymes. Once the DNA in a cell is replicated, the cell can divide into two cells, each of which has an identical copy of the original DNA.

hope this helps

Q1.
This question is about ecology
(a) Give two abiotic (non-living) factors which will affect the growth of plants on a
school playing field.
Give a reason why each factor will affect the growth of the plants
Abiotic factor 1
Reason
Abiotic factor 2
Reason

Answers

Answer:

light intensity

temperature

Explanation:

light is required for photosynthesis, and plant species have evolved for optimum growth in the light available in their climate or habitat

animals and plants have evolved to grow healthily at their optimum temperatures

List at least 2 advantages and 2 disadvantages of selective breeding.

Answers

Answer:

The advantages of selective breeding can include improved quality and higher ... breeding are positive for humans but an awareness of the disadvantages can help

Explanation:

Answer:

well u get two different breeds together and u get the feature of both breeds

there be a petulant medical issue or it could be that there is a issue during birth

Explanation:

What 3 systems get put to work when a beaver is building a home and how?

Answers

Answer:

beaver dams smooth out water flow by increasing the area wetted by the stream. This allows more water to seep into the ground where its flow is slowed. This water eventually finds its way back to the stream. Rivers with beaver dams in their head waters have lower high water and higher low water levels.

Explanation: Brainlest plz?

Answer:

‍♀️

Explanation:

Runny lava comes out of what type of volcano?​

Answers

Answer:

shield volcanoes

Explanation:

Which environmental change occurs most rapidly?

Answers

Answer:

volcanic eruption

Explanation:

"The environmental change that occurs faster is definitely volcanic eruption. It may happen in an instant and destroy everything in its way, whereas the process of regrowth of forest after volcanic eruption is a slow one."

Answer:

Abrupt climate change.

Explanation:

Abrupt climate change is climate change that occurs relatively rapidly. Our understanding of past abrupt climate changes and their causes is still in its infancy; most of the research on this topic has occurred since the early 1990s.

Martime tropical air masses contain what type of air?
O cold and dry air
O hot and moist air
O cold and moist air
O hot and dry air​

Answers

Answer:

77

Explanation:

is revan strong with the force

Answers

Answer: Revan in his prime is one of the most powerful force users in legends history, more powerful than the likes of Mace Windu, Darth Bane, Satele Shan, Kenobi, Anakin, or Darth Malgus, and being overpowered by Yoda(maybe), Luke Skywalker(legends), Darth Vitiate, Darth Sidious, and Darth Caedus/Jacen Solo.

Explanation:

nees help asap extra. points!!!!!!!!!!​

Answers

Its not letting me put my answer in for some reason Brainly is acting weird.

The second picture is how to put the alleles in each box.

Genotype is the genetic code of someones trait so the parents genotype is Bb. Phenotype Is the visual trait that we can see so if the parents have a genotype of Bb we would visually see brown eyes as our phenotype.

Just look at it jehjdbd

Answers

Answer:

A increase or decrease in temperature

Explanation:

The number of penguins can be used to monitor changes in temperature of the environment. Temperature readings could also be taken using a thermometer. What is the advantage of using penguins, instead of a thermometer, to monitor changes in temperature of the environment?

Answers

Answer:

Living organisms show long-term changes

Explanation:

The changes in climatic conditions can be evidenced by monitoring populations of wild species which are forced to adapt to survive. Penguin populations can help us not only to monitor but also to predict climatic fluctuations (e.g., temperature changes associated with Antarctic warming) in a whole context. Fluctuations in penguin populations in the Antarctic region show structural changes in the food chain, thereby population monitoring provides a means of assessing climate change as a whole, in the long term.

Bacteria are responsible for carrying out
the process of nitrification. How are
bacteria classified?
A. Detritivores
B. Decomposers
C. Scavengers
D. Producers

Answers

Answer:

D

Explanation:

Hope this helps!!!!

Nitrification is a process that is carried out by a distinct group of bacteria that convert, which later adds it into soil hence decomposers.

A small group of aerobic bacteria makes use of the inorganic components. These microscopic organisms play a crucial role in the formation of soil and help in nitrogen fixation.

These bacteria convert the soil ammonia to nitrates and then dilute them into soil that otherwise would be toxic for the plants.  As they convert the freely available nitrogen they are thus known as decomposers. Such as nitro-bacteria, nitro-spina.

Hence they are classified as decomposers. Thus option  B is correct.

brainly.com/question/21351909.

Suppose you are determining the growth rate of two species of plants. Species A is 25 cm tall and grows 3 cm per month. Species B is 10 cm tall and grows 8 cm per month. Which system of equations models the height of each species H(d) as a function of days d. H(d) = 25 + 3d H(d) = 10 + 8d H(d) = 3 + 25d H(d) = 8 + 10d H(d) = 25 + 3d H(d) = 8 + 10d H(d) = 2 + 8d H(d) = 25 + 10d

Answers

Answer:

H(A) = 25 + 3m and H(B) = 10 + 8m

Explanation:

Let H(A) is the height of species A as a function of months m while H(B) is height of species B as  a function of months m.

For Species A,

H(A) = 25 + 3m

For species B,

H(B) = 10 + 8m

Hence, this is the required solution.

A hemisphere experiences summer when _____________ .

A) it is tilted toward the Sun

B) it is tilted away from the Sun

Answers

Answer:

A

Explanation:

tilted towards sun....

A... tilted towards the sun

4. The results of a genetic process are represented in the diagram.
allele a
allele A
allele bad
allele B
Homologous Chromosomes
Which of the following would increase due to the process shown above?

Answers

Answer:

— cellular organelle is represented by the diagram below? A) cell wall. B) molecules ... of bacteria that reproduce by the process shown below. Which statement ... A) the same genetic information as both of its parents. B) different genetic ... Asexual reproduction of a diploid cell normally results in new cells that ...

Explanation:

In 1 minute, a mass of 9 000 kg of water flows through the turbines.
The speed of the water is 30 m/s
Calculate the total kinetic energy of the water passing through the turbines in 1 minute.

Answers

Answer:

1/2 x 9000 x 30x30=4050000 joule

Explanation:

4050000 energy

Help ASAP. Read carefully

Answers

I think it’s y1 and y4

In what ways might the use of adult stem cells be better than the use of embryonic stem cells?

Answers

Embryonic stem cells can be readily grown in culture and exhibit unique properties, including spontaneous differentiation into three germ layers in vitro or teratoma formation in vivo. In contrast, adult stem cells are rare, undifferentiated cells present in many adult tissues. I hope this answer helps you. Have a lovely day.

Help pls very time sensitive due today!!

Answers

Answer:

1 left.

Explanation:

You have 4 particles on the left and 6 particles on the right. An equilibrium state is where both sides would have the same amount of particles.

So 1 particle from the right will have to move to the left.

Think of it this way.

4 does not equal 6.

5 does equal 5

welp there’s ur answer i’m a bit late

What is the difference in terms of function and structure for arteries and veins?

Answers

Arteries are blood vessels responsible for carrying oxygen-rich blood away from the heart to the body. Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation. ... They're part of two closed systems of tubes that begin and end at the heart. I hope this helps. Have a great day. ☺️

What are two reasons why cell division is important to living things?

Answers

Answer:

Explanation:

repair of damaged tissues healing and regeneration,

Hope this helps

An ocean wave is a combination of a __________________ and _________________ wave.

Answers

Answer:

Transverve and Longitudal

Answer: water and energy

Explanation: A wave is a complex mix of water and energy. Anyone who has watched breakers roll into the shore, or been seasick on a boat,

a group of that works together are called organs

Answers

Answer:

Tissues.

Explanation:

A group of distinct tissues work together & make up an organ which in turn makes an organ system.

Answer: tissues

Explanation: A group of tissues that work together are called organs

(Image below) PLEASE HELP!

Answers

GGU

Explanation:
C becomes G
And A becomes U
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Need quick please thanks

Answers

Answer:

the last answer

Explanation:

sorry if its wrong

Answer:

The mouse must be ff.

Kendra wonders what would happen if the oceans did not exist on Earth. Based on her understanding of the oceans and the water cycle she predicts that Earth would become warmer, with less rain, more clouds, and that living things would not survive. Which part of her prediction is incorrect?

Answers

Answer: More clouds

Explanation:

Just like Kendra's prediction, if oceans did not exist, the Earth would become warmer with less rain and living things would not survive.

The prediction that there would be more clouds is wrong. Clouds are formed when water vapor in the air turns into ice crystals or liquid water droplets. It usually happens when the air contains more water vapor than it can hold.

And we know that oceans are the major sources of water on earth as they make up 70% of the earth's surface. So if oceans did not exist, other smaller bodies of water will cease to exist too within a short period of time because they would not be able to cater for the whole earth. Therefore, there would not be enough water to accumulate in the air to aid cloud formation.

Answer:Just like Kendra's prediction, if oceans did not exist, the Earth would become warmer with less rain and living things would not survive.

Explanation:  That living things would not survive

what happens to light as it passes through the prism​

Answers

Answer:

light bends

Explanation:

the colours that makeup white light get separated, this happens because each colour has a particular wavelength and each wavelength bends at a different angle

How did Hershey and Chase use radioactivity to draw a conclusion about proteins and DNA?

Answers

Hershey and Chase studied bacteriophages which are viruses that attack bacteria. They labeled the bacteriophage with radioactive isotopes to see where it goes when a virus attacks. They discovered that nearly all the radioactivity was found in phosphorus, confirming that DNA contains genetic material, not protein.

Hershey and Chase studied bacteriophages which are viruses that attack bacteria. They labeled the bacteriophage with radioactive isotopes to see where it goes when a virus attacks.

What is Hershey and Chase experiment?

They discovered that nearly all the radioactivity was found in phosphorus, confirming that DNA contains genetic material, not protein.

The final experiment, also known as the Waring Blender experiment, in which Hershey and Chase demonstrated that phages only injected their DNA into host bacteria and that the DNA acted as the replicating genetic element of phages, is the Hershey-Chase experiment that is most well-known.

Hershey and Chase discovered proof that phages introduced their DNA into host bacteria in the prior experiment.

Therefore, Hershey and Chase studied bacteriophages which are viruses that attack bacteria. They labeled the bacteriophage with radioactive isotopes to see where it goes when a virus attacks.

To learn more about bacteria, refer to the link:

https://brainly.com/question/8008968

#SPJ6

name the ingrident that contains starch in the sauce

Answers

Answer:

here...

Explanation:

Cornstarch: Cornstarch, cornflour, or maize starch is the starch derived from the corn (maize) grain or wheat. The starch is obtained from the endosperm of the kernel. Corn starch is a popular food ingredient used in thickening sauces or soups, and is used in making corn syrup and other sugars.

Time Period 1
(Oldest)
Time Period 2
Time Period 3
(Newest)
Fossil A
Fossil B
Fossil C
What can you conclude from this information?
A. Fossil C was best adapted for a dry environment because their population increased in Time Period 3.
OB. Fossil B struggled to survive in a dry environment because there are none of Fossil B in Time Period 1.
O C. Fossil C survived best in a rainy environment because there is a large population of them in Time Period 3.
OD. Fossil A was better adapted to a dry environment because there is a large population of them in Time Period 1

Answers

Answer:

Explana⊃tion:

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