Answer:
If i project light rays rhough the glass, then they will refract, or bend.
Explanation:
A cylindrical tube of length 27.75 cm and radius 2.00 cm is filled with argon gas. The empty tube weighs 188.25 g. The tube filled with argon weighs 188.87 g. Calculate the density. formula =
Answer:
Explanation:
that should help
Density is mass per unit of volume. The density of argon is 1.778 × 10⁻³ gm/cm³.
How are the density, volume, and mass of a substance related?Suppose that a finite amount of substance is there having its properties as:
mass of substance = m kgdensity of substance = d kg/m³the volume of that substance = v m³Then, they are related as:
d = m/v
The volume of the tube = π × r² × h
= π × (2cm)² × 27.75 cm
= 348.716 cm³
Mass of Argon = Mass when tube is filled - Mass when tube is empty
= 188.87 g - 188.25 g
= 0.62 g
Now, the density of the gas can be written as,
Density = Mass / Volume
= 0.62g / 348.716 cm³
= 1.778 × 10⁻³ gm/cm³
Hence, the density of argon is 1.778 × 10⁻³ gm/cm³.
Learn more about mass, volume, and density relations here:
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why might this cloud formation be termed the “Pillars of Creation"?
A. Stars are being born here.
B. Black holes are forming here.
C. Supernovas are exploding here.
D. White dwarfs are cooling and growing dimmer here.
Answer:
I think the answer might be A
Explanation:
because if its called Pillars creation then something important might be being born maybe
How do ocean currents affect tempature?
Answer:
Ocean currents act as conveyer belts of warm and cold water, sending heat toward the polar regions and helping tropical areas cool off, thus influencing both weather and climate. The ocean doesn't just store solar radiation; it also helps to distribute heat around the globe
Explanation:
The first one
What is an electron shell? How many electrons fit in the first, second, fourth
And subsequent shell?
Its due tonight so take your time I guess.
Answer:
An electron shell is the outside part of an atom around the atomic nucleus. It is a group of atomic orbitals with the same value of the principal quantum number n. Electron shells have one or more electron subshells, or sublevels.
Explanation:
The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6), The 4th shell can hold up to 32 electrons.
I don't know the last one though
Please answer this!!! My science homework is going to be due in a few minutes!
I really need help!!!
If we looked at weather balloon data taken at 12:00 noon instead of 12:00 midnight, what do you think we would see in that data?
And
If we gathered temperature data by moving closer to the ground, what do you think we would see in that data?
Answer:
the data could be wrong
Explanation:
What is chronology?
A. Events before 1066
B. The correct order of events overtime
C. A collection of historical writings
D. None of the above
Answer:
The correct order of events over time
Answer:Its B
Explanation:Can I please have brainliest
help me ASAP! don’t give me the sample response!
Answer:
do it your self
Explanation:
teheheheHELPPP ILL GIVE YOU BRAINLIST!!!!
write a brief paragraph that explains the correlation between, Earths energy budget, global warming, the greenhouse effect, atmospheric ozone, and carbon dioxide.
paragraph must be up to 3-5 sentences.
Answer: The correlation between all of these examples would be They are all earths natural energy balance. To maintain a constant global average temperature, all of the sun’s radiation that enters Earth’s atmosphere must eventually be sent back to space. The greenhouse effect plays a significant role in Earth's energy budget. With the natural greenhouse effect, the energy budget is balanced as thermal radiation is re-radiated towards the ground, trapping thermal energy and warming the Earth. However, with the greenhouse effect being enhanced by humans, the energy budget of the Earth is shifted to an imbalance. It is important to understand that a certain amount of energy being retained due to the greenhouse effect is necessary, but too much results in conditions that account for increased global temperatures and climate change.
Explanation:
PLEASE HELP IM ACTUALLY SHAKING IM REALLY LATE
Tim and Christie poured coffee from the same pot into two cups. Christie poured milk into her cup then she added 5 teaspoons of sugar and stirred it for five seconds. Tim on the other hand put 5 teaspoons of sugar into his cup and stirred it for five seconds, and then he added milk. Christie noticed that her sugar did not dissolve completely.
What is the Independent Variable in this experiment?
What is the Dependent Variable in this experiment?
What are some of the Constants in this experiment?
Were the continents once joined together as a supercontinent? Give 3 pieces of evidence to support Alfred Wegeners Theory of Continental Drift.
Compare the sound of thunder to the sound of a fire alarm at school. How are the wavelengths, frequencies, and amplitudes similar or different?
Answer:
The fire alarm is a higher pitch than thunder.
Explanation:
The fire alarm is a higher pitch so the wavelengths are going to be closer and the amplitude is going to be taller, and the thunder is a lower pitch, so the wavelengths are going to be farther and the amplitude is going to be smaller.
The wavelengths, frequencies, and amplitudes are different for the sound of thunder as compared to the sound of a fire alarm.
Characteristics of sound:The sound of thunder is low pitched sound, whereas the sound of a fire alarm is a high-pitched sound.
The pitch of a sound depends on the frequency of the sound, a higher frequency has a higher pitch. Whereas loudness depends on the amplitude of the sound.
For a low-pitched sound, the slope of the wave on the amplitude and time plot is flatter which means that the wavelength of the sound is larger and the frequency is smaller.
For a high-pitched sound, the slope of the wave on the amplitude and time plot is sharper which means that the wavelength of the sound is smaller and the frequency is larger.
Learn more about pitch:
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2+2 can someone plz tell me the pros and cons of ending life right here and now?
Brainliest if ur on my friends list!
Answer:
4
Explanation:
Well the cons are if you end your life rn then like you are kinda afk from life.. I dunno I'm a gamer so like if you die then there is no coming back u know.... ooooooooooooff I dunno what to say
And the pros are just don't do it, actual help is hard to find but like if you were to try and start over you could possibly also don't do that to who ever has to clean up the bloody mess. Coroners don't like getting hung bodies down and janitors don't like cleaning up blood. :) Find someone who loves you more than you do for yourself that will help a lot. Find a thing you like doing it helps too. Disappear for a day or two.
when forklift moves a crate, it performs _______.
Answer:
GPE
Explanation:
When training to increase physical fitness, adaptation occurs....
A. gradually and progressively
B. short and fast
C. long and short
D.quick and easy
This is the 3rd time I reposted this question lol.
Answer:
Blood absorbs nutrients and the waste products of cells. It carries waste away from cells and pumps nutrients through the whole body.
Explanation:
plzzz someone help me!!!!.
The picture below shows an experiment to find out the highest frequencies which students can hear. When the teacher turns the dial the frequency from the loudspeaker increases. the students put their hands down when they can no longer hear the sound.
Some students put their hands up while others have put their hands down. What conclusion can you draw from this observation?
The teacher suspects that some of the students are not giving honest responses, they are keeping their hands up even when they can no longer hear the sound. How could he check if he is right? *
Answer: Different hearing abilities.
Explanation:
From the observation, it can be concluded that different students have different hearing abilities. Some students put their hands up later, indicating that they can hear higher frequencies, while others put their hands down earlier, indicating that they can only hear lower frequencies.
To check if the teacher's suspicion about some students not giving honest responses is correct, he could randomly select some students and ask them to identify a few frequencies. He could also use different methods to test their hearing abilities, such as using headphones or playing the sound at different volumes to see if they can still hear it. Additionally, the teacher could repeat the experiment on different days to check if the same students are consistently putting their hands up even when they cannot hear the sound.
Why can even a small injury to the cornea have a effect on vision
Answer:
It also plays a key role in vision. As light enters your eye, it gets refracted, or bent, by the cornea's curved edge. This helps determine how well your eye can focus on objects close-up and far away. If your cornea is damaged by disease, infection, or an injury, the resulting scars can affect your vision.
Volcanos are a geologic phenomenon that occurs at tectonic plate boundaries.Which provides the best evidence for the theory that faults and volcanoes are results of tectonic plate interactions?
a. Faults on tectonic plates are in constant motion, but volcanoes may not erupt for many
years
b. Tectonic plates that have many faults do not usually have volcanoes.
a. Faults and volcanoes existed long before there were tectonic plates.
b. Faults and volcanoes are often found at tectonic plate boundaries.
pls help :)
Word Bank: brain, instincts, interpreted, organs, reflexes, spinal cord, senses
The central nervous system includes the _______ and _______.
Signals from _______ and the body's _______ are received by the brain and the spinal cord.
Once signals are processed and _______ by the central nervous system, a response is sent back to the body.
A central nervous system is also responsible for programming _______ and _______.
Answer:
Explanation:
1. brain, senses
2. instincts, senses
3. interpreted
4. reflexes, organs
The central nervous system includes the brain and spinal cord.
Signals from senses and the body's organs are received by the brain and the spinal cord.
Once signals are processed and interpreted by the central nervous system, a response is sent back to the body.
A central nervous system is also responsible for programming reflexes and instincts.
(I think that's good)
What causes a seismic wave?
sudden breaking of rock as it releases potential energy
very loud sound waves from the atmosphere entering the ground
growing pressure on rocks from the weight of material above them
energy transferred into Earth from the Sun as electromagnetic waves
what features of stars are plotted on the Hertzsprung-Russell diagram? density and mass B. physical structure and composition apparent magnitude and luminosity brightness and surface temperature
Answer:
its luminosity (brightness) and temperature
Explanation:
pleease help im crying im failing
Answer:
The north pole is tilted 23 degree
Is it First or Second law Newtons law? Fill in the blanks
A soccer ball accelerates faster than a bowling ball when the same amount of force is applied. _____________
A hockey puck keeps gliding across the ice ____________
A picture hanging on the wall does not move. _____________
Pushing a car versus a bike. _______________
A driver not wearing a seatbelt abruptly stops and he gets thrown forward in the car _________________
Answer:
1. Second Law
2. First Law
3. First Law
4. Second Law
3. First law
HELP PLEASE Trying to learn how to do this
I can't figure it out for my students anyone knows
(LOL)
sorry if it is blurry
Answer:
Im sorry I cant help you but i just have to say something...
Explanation:
All though I cant see all of your face I can tell your very pretty and I wish you best of luck for your students. Have a good day/night!
If you use the same force to push a motorcycle as you would to push a bike, which one will have more acceleration and why? Explain using Newton’s Second Law
Answer:
the bike would because it has less mass.
Explanation:
im learning newtons laws in class right now so that should be right
PLEASE HELP!!!!!!!!
Explain how the skin is a factor in the regulation of body temperature.
Answer: The prodigious blood flow of the skin avails control temperature: dilated vessels promote heat loss, while heat is preserved by constricted vessels. In its supply of oxygen, the skin controls body temperature. In homeostasis, the skin fortifies. By inhibiting sweat evaporation and ergo heat loss, sultriness controls thermoregulation.
Why are concave lenses, rather than convex lenses, used to treat nearsightedness?
PLEASEEEEEE HELLPPPP
Answer: one of them is more lighter to move and the other one is more heavy to move. hope this helps
Which object would be affected more by friction. A bowling ball or a ping pong ball? EXPLAIN WHY
Answer:
a bowling ball because its heavier
Explanation:
(Science)
Fill in the blanks with the right word.....
Word bank:
physics
gravity
Newton's 1st law
inertia
forces
Answer:
(4) inertia
(5) forces
(6) Newton's 1st law
(7) gravity
(8) physics
Hope I helped!!!