Answer:
In mechanics, acceleration is the rate of change of the velocity of an object with respect to time. Accelerations are vector quantities. The orientation of an object's acceleration is given by the orientation of the net force acting on that object
Explanation:
i took the test
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:
Hope you have a great day :)
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:
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!
Why do you think that the particles of a suspension settle out but the particles of a colloid do not? Explain your reasoning.
Answer:
a collaid make more particles
Explanation:
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
Hardness refers to the strength of the forces holding atoms together in a solid mineral. The Mohs scale will tell how easily a mineral can be scratched. It has a range from 1 to 10. Diamonds are a 10 on the Mohs scale. They are the hardest minerals in the world. The color of a mineral is often easy to identify. Many minerals are found in a range of colors. This is true for diamonds also. They can be yellow, brown, blue, green, orange, purple, black, pink, red, or colorless. Colored diamonds have impurities that cause them to change colors. Colorless diamonds, however, are very pure. Luster refers to how a mineral looks when it reflects light. A minerals luster could be metallic, dull, pearly, or adamantine. Diamonds have adamantine luster–their brilliant sparkle. Streak refers to the color of the powder left by a mineral. Streak is often found after a mineral is scratched on a porcelain tile. The color of the streak left on the tile helps to identify the mineral. The streak of a diamond is white.
Paragraph 5 of this passage mainly tells about
Answer:
Determine how rare a diamond is
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.
Describe the 3 layers of the mantle
Answer:
The 3 main layers are the core, mantle and crust
Explanation:
Answer:
I hope this is the answer for your question
Explanation:
Mantle is the widest section of the Earth. Its thickness is approximately 2,900 km. The mantle is mainly made up of semi-molten rock known as magma. The rock is hard in the upper part of the mantle, but lower down the rock is softer and begins to melt.
The mantle is located directly under the Sima. The mantle consists of very hot and dense rock. This layer of rock flows like asphalt under heavy weight. This flow is because of the greatest temperature differences from the bottom to the top of the mantle. The reason behind the plates of the Earth move is the movement of the mantle. Its temperature varies between 1600 oF at the upper part to 4000 oF near the bottom.
Target games are a category of games where the participant propels an object, preferably with a high degree of accuracy, at a target.
Suggest one way energy can be transferred without being transformed.
compare distance and displacement (in science).
Answer:
Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion. Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.
Answer:
I am so sorry but I am not sure I have spent 15 minutes trying to figure this out
Explanation:
PLEASE HELP!! IN A HURRY! 13 POINTS!! SCIENCE!! WILL GIVE BRAINLIEST!! <3
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.
What process brings Carbon into the biotic part of an ecosystem?
Answer:
Carbon moves from plants to animals.
Explanation:
Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth. Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them. Animals that eat other animals get the carbon from their food too.
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
An astronaut weighs 760. N on Earth, what is his mass in kg?
True or False
Babies have around 100 more bones than adults.
Answer:
I would say it's true
Explanation:
when u get older we have less bones
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.
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:
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:
Carbon monoxide (CO) _____.
A. is a compound made of oxygen and carbon
B. is an element
C. increases in volume when compressed
D. is made of two oxygen atoms and two carbon atoms
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:
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.
HOPE IT HELPS!!
PLS MARK AS BRAINLIEST!!
ALL THE BEST!!
This image shows an overhead view of Atlanta’s buildings, structures, and surrounding areas and a heat map of the area. What is the most likely reason for the high temperature in the regions indicated in dark red? two maps of Atlanta, one showing an overhead view of Atlanta's buildings and structures and other showing the heat levels in the area Atlanta’s roads and buildings absorb more of the Sun’s radiation, causing higher temperatures than in surrounding regions. Atlanta’s trees and forests absorb more of the Sun’s radiation, causing higher temperatures than in surrounding regions. The rural areas around Atlanta absorb more heat than the urban areas, causing an overall increase in the city’s temperatures.
The answer is A..................
Answer:
answer is a
Explanation:
just do it
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
How Buoyancy force on an object is related to the weight of liquid it displaces?
The buoyancy force (B) is equal to the weight (W) of the fluid that a body in that fluid displaces. Fluid pressure increases with depth because of the (gravitational) weight of the fluid above. This increasing pressure applies a force on a submerged object that increases with depth. The result is buoyancy
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
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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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.
You measure the mass of an apple using a balance. You get these three measurements:
Trial 1: 167.0 g
Trial 2: 166.9 g
Trial 3: 167.2 g
You know that the true mass of the apple is 172 g. Describe your results in terms of precision and accuracy. Explain your answer.
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.
Did you know...
Stomach acid is strong enough to dissolve stainless steel
Venus is the only planet to spin clockwise
A flea can accelerate faster than the Space Shuttle
This is for fun!
Answer:
I don't understand the question but I knew the clockrise