Why do you use immersion oil with a 100X objective lens?
Answer:
For example, by placing a substance such as immersion oil with a refractive index that is equal to the glass slide in the space filled with air, more light is directed through the objective and a clearer image is observed
Explanation:
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The 100x lens is immersed in a drop of oil placed on the slide to eliminate any air gaps and loss of light due to refraction as light passes through glass(slide) → air → glass(objective lens)
What is Immersion oil?Oil immersion is a technique used to increase the resolving power of a microscope by immersing both the objective lens and the specimen in a transparent oil of high refractive index, resulting in an increase in the numerical aperture of the objective lens.
An immersion oil used in microscopy essentially consists of a solution of hydrogenated terphenyl, a polybutene, and a mineral oil, which provides a solution with a refractive index between 1.5100 and 1.5240.
It is used for the highest power objectives because light refraction from low power magnification microscope objective lenses such as (10X and 40X) is negligible and not noticeable.
Thus, the 100x lens is immersed in a drop of oil placed on the slide to eliminate any air gaps and loss of light due to refraction as light passes through glass(slide) → air → glass(objective lens).
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Which form of friction produces the least amount of force?
rolling friction
sliding friction
fluid friction
static friction
Answer:fluid friction
Explanation:
Creates less friction due to the liquids.
Answer:
Answer: Fluid Friction
Explanation:
Relate the buoyant force to increased depth
Answer:
The buoyant force is a result of pressure exerted by the fluid. The fluid pushes on all sides of an immersed object, but as pressure increases with depth, the push is stronger on the bottom surface of the object than in the top
Explanation:
How well does the use of nuts, bolts, and washers work in creating models to represent elements, compounds, and mixtures? Are there drawbacks?
Answer:
Hope it helps!!!
Explanation:
one nut represents an atom and a single bolt represents an atom you put atoms together to create compounds a molecule is created when two or more atoms join together chemically a compound is a molecule that contains at least two different elements. a drawback could be that u can see both individual pieces wherein certain mixture and compounds u can’t see both components.
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Newton's law of universal gravitation can be applied to
only to very massive objects
to any two objects with mass
only to objects near Earth's surface
only objects in outer space
PLEASE HELP!! REPOSTING THIS QUESTION!! 13 POINTS! SCIENCE
Red Shifts in a spectroscopic image indicate that....
A. the mass or object viewed is coming closer, due to wavelengths getting longer.
B. the wavelengths are getting shorter
C. An object has mercury in it
D. The objects or masses viewed are traveling away from us.
Answer:
B
Explanation:
What is the difference between a light wave and an infrared wave?
Answer:Infrared light has a wavelength that is longer than that of standard red light, and although considered part of the red color spectrum, infrared wavelengths are still much shorter
which statement about pulleys is NOT true?
1. Fixed pulleys change the direction of output force.
2. fixed and movable pulleys can be combined
3. fixed pulleys increase the output force.
4. movable pulleys reduce the input force
- Will give Brainly for CORRECT answer -
Base on the fact below, it is therefore not true that movable pulleys reduce the input force.
Fixed pulley is positioned in a specific position which cannot be changed through out its application except it is uninstalled and installed in another fixed position. The magnitude of the force applied at one end will be the same at the other side. And it changes the direction of the output force.
Fixed and movable pulleys: One, two or more movable pulleys can be attached to a fixed pulley in order to increase efficiency or to achieve a certain goal.
Movable pulleys are the opposite of fixed pulleys. Movable pulley, as its name implies, can move from one position to another but it does not change the direction of the force applied. The force applied at one side of the pulley multiplies at the other side for the lifting of the load.
Base on the fact above, it is therefore not true that movable pulleys reduce the input force.
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compare distance and displacement
Fun Facts on animals
The heart of a shrimp is located in its head.
A snail can sleep for three years.
The fingerprints of a koala are so indistinguishable from humans that they have on occasion been confused at a crime scene.
Slugs have four noses.
Elephants are the only animal that can't jump.
It is possible to hypnotize a frog by placing it on its back and gently stroking its stomach.
What two gases in the atmosphere do animals and plants need to breathe and grow?
Answer: Explanation:
Plants and animals each produce the gases that the other needs to live. Plants need carbon dioxide—people and other animals exhale carbon dioxide as a waste product. People and other animals need oxygen—plants produce oxygen during an important process called photosynthesis, which turns the sun's energy into nutrients.
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What season is the Southern Hemisphere experiencing when the Northern Hemisphere is experiencing summer? Explain your answer.
The Southern Hemisphere experiences Winter during Northern Hemisphere's Summer. The reason why, is because the earth's axis is causing the North Pole to lean towards the sun.
It's the opposite in NH Winter and SH Summer. The South Pole is leaning towards the sun at this time.
What is the most important part when passing a volleyball?
Answer: ur form (how u hit it)
Explanation: if it’s not what ur looking for lmk i’ll try to answer differently
Decide whether each item describes a feature that should or should not be part of a summary of an informational text, and classify it accordingly.
Should be included
Should NOT be included
ITEM BANK: Move to Top
connects key ideasincludes supporting detailsrefers to at least one outside source for supporting detailsuses exact words and phrasing as the original textuses objective voice
Decide whether each item describes a feature that should or should not be part of a summary of an informational text, and classify it accordingly.Should be includedShould NOT be includedITEM
BANK: Move to Topconnects key ideasincludes supporting detailsrefers to at least one outside source for supporting detailsuses exact words and phrasing as the original textuses objective voice
Answer: Should be included:uses objective voice,connects key ideas,includes supporting details……….and for the second one should not be included:uses exact words and phrasing as the original text,refers to at least one outside source for supporting details
Explanation:
The equation for photosynthesis is 6H2O (water) + 6CO2 (carbon dioxide) + Light Energy → C6H12O6 (glucose) + 6O2 (oxygen). When first discovered, scientists were trying to decide if the oxygen in the product came from carbon dioxide or water. Which statement describes how scientists traced the path of oxygen?
They used a radioactive isotope and tracked it with a Becquerel counter.
They used a radioactive isotope and tracked it with a Geiger counter.
They used a stable isotope and tracked it with a Becquerel counter.
They used a stable isotope and tracked it with a Geiger counter.
Answer:
energy
Explanation:
If population were considered the ultimate indicator of success, which species would be the most successful?
1.birds
2.mammals
3.termites
4.dinosaurs
Answer:
Termites
Explanation:
I had it on a quiz
If a population is considered the ultimate indicator of success, then the termites would be the most successful (Option 3).
What is evolutionary success?The expression 'evolutionary success' makes reference to the ability of a species to face environmental challenges.
Termites are highly adaptable and this species survived many different mass extinctions.In conclusion, if a population is considered the ultimate indicator of success, then the termites would be the most successful (Option 3).
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How does the game of Nukem resemble volleyball? What skills are the same? What skills are different?
A person who has the condition CIPA is unable to feel pain or temperature. Which sensory receptors are affected by this condition? (1 point)
A.) Chemoreceptors and photoreceptors
B.) Thermoreceptors and mechanoreceptors
C.) Mechanoreceptors and chemoreceptors
D.) Photoreceptors and thermoreceptors
Please help 15 Points
B........................
The person with CIPA condition that is congenital insensitivity to pain with anhidrosis will not pain and temperature and decreased sweating. Here, the thermoreceptor and mechanoreceptors are affected.
What is CIPA?CIPA is state known as congenital insensitivity to pain with anhidrosis is affecting the thermoreceptors and mechanoreceptors and thus make it unable to feel pain or temperature.
Receptors are structure able to capture signal from a stimuli and pass it to the brain from it carries a signal in return.
Mechanoreceptors are sensory receptors that transduce signals through ion channels which are mechanically gated. These receptors reacts to touch, pressure, motion stretching etc.
Thermoreceptors realize the change in temperature in the body and external stimuli with heat. If these two kind of receptors are damaged a person will be unable to feel pain or temperature.
Hence, a person with CIPA have affected with their Mechanoreceptors and thermoreceptors. Thus, option B is correct.
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DIRECTIONS: Read each sentence. Determine the meaning of the word using clues from the
sentence or knowledge you already have. Then explain what it was that helped you find the
meaning of the word.
1. When parents said she go to the party, she got all melodramatic, began to
cry and accusing her parents of wanting her to be a social failure.
What does it mean? ___________________________________________________________
2. Several days after Rory had already been blamed and punished for what Tom had done, Tom
began to feel his first, sharp pangs of remorse. What does it mean? _____________________________________________________________
3. Allen so often made jokes about things, and failed to take things seriously, that at first it was
hard for the others to believe that this time he was being earnest. What does it mean? _____________________________________________________________
4. demeanor was such that only people who knew her really, really well could tell when
something was bothering her.
What does it mean? _____________________________________________________________
5. The team rallied around their star player, even though now that his leg was broken, the
chances of winning the championship were dismal. What does it mean?
Answer:
1: Melodramatic means that you are being more dramatic than the situation calls for.
2: Remorse means guilt;being or feeling sorry for something you have done.
3: Earnest means showing sincere and intense conviction.
4: Demeanor means outward behavior or baring.
5: Dismal means depressing or dreary.
Explanation:
1: She started crying and yelling at her parents for not letting her go to a party.
2: He had been blamed and punished for whatever the action he committed.
3: He had made a lot of jokes, so it was hard for people to believe him.
4: Only people who truly knew her could tell when something was wrong
5: The star players leg was broken, so they had no chance of winning their game.
I hope this helps!
What is a current?
lolz its making me write more bc my answers too short so uhhh any of yall in love w draco malfoy too??
Answer:
sorry, no
Explanation:
Answer:
Yep, he's sooooo Hawt ;)
Explanation:
It's just a fact
Suggest one way energy can be transferred without being transformed.
List three forms of kinetic energy discussed in the video.
Answer:
transational, rotational, vibrational
Name and describe three measures of central tendency used to summarize data.
Read the assignment carefully and make sure you answer each part of the question or questions.
After you've written your response, go back and read it again to make sure your thoughts are clear.
Answer:
Explanation:
You can think of it as the tendency of data to cluster around a middle value. In statistics, the three most common measures of central tendency are the mean, median, and mode. Each of these measures calculates the location of the central point using a different method.
There are three main measures of central tendency: the mode(the number that occurs most often) the median ( the middle value in the list of numbers) and the mean (the average number in the list of numbers).
Answer:
The mean, median, and mode are three of the most commonly used measures of central tendency.
Explanation:
Quantitative variables are often summarized using numbers to communicate their central tendency. The numerical average; calculated as the sum of all of the data values divided by the number of values.
Which of the following expresses Newton's third law?
a.The total momentum of an isolated system always remain constant.
b.Acceleration is always accompanied by a force.
c.Every action force is accompanied by an equal and opposite reaction force.
d.Objects tend to remain at rest or in motion at constant speed
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Which of the following best describes the relationship between frequency and wavelength of electromagnetic waves?
A. If the frequency remains constant, the wavelength size increases.
B. As the wavelength size decreases, the frequency decreases.
C. As the frequency increases, the wavelength size decreases.
D. If the wavelength remains constant, the frequency increases.
Answer:
b makes the most sense
Explanation:
Answer:
I think C is the correct answer.
Explanation:
The higher the frequency, the shorter the wavelength. Because all light waves move through a vacuum at the same speed, the number of wave crests passing by a given point in one second depends on the wavelength.
PLEASE HELP!! 13 POINTS! SCIENCE!
Red Shifts in a spectroscopic image indicate that....
A. the mass or object viewed is coming closer, due to wavelengths getting longer.
B. the wavelengths are getting shorter
C. An object has mercury in it
D. The objects or masses viewed are traveling away from us
Answer:
it's only 7 points we have an eyessssss
pls answer this due today
Answer: I can simplify it down to at least A or D but I am pretty sure that it is A
Explanation:
If an IPS student weighs 115 lbs on Earth, what is their weight in Newtons?
Answer:
511.545 Newtons
Explanation:
So 1 pound=4.44822 Newton’s so 115 times 4.44822 is 511.5453, then round it to get 511.545 Newtons.
The equation for photosynthesis is 6H2O (water) + 6CO2 (carbon dioxide) + Light Energy → C6H12O6 (glucose) + 6O2 (oxygen). When first discovered, scientists were trying to decide if the oxygen in the product came from carbon dioxide or water. Which statement describes how scientists traced the path of oxygen?
They used a radioactive isotope and tracked it with a Becquerel counter.
They used a radioactive isotope and tracked it with a Geiger counter.
They used a stable isotope and tracked it with a Becquerel counter.
They used a stable isotope and tracked it with a Geiger counter.
Answer:
b
Explanation:
bc
Answer:
b
Explanation:
I got 100% on the test
Explain the difference between accuracy and precision.
Answer:
accracy describes the diffrence between the measurement and the part's actual value , while precision describes the variation you see when you the same part repeatidly with the same device!
Explanation: