Answer:
C
Explanation:
think of it this way. Have you ever tried to pick up paperclips with a magnet then get more paperclips attached? the paperclips are in the magnetic field amd are temporary charged.
Four radioactive 10-gram (g) samples with their remaining isotope mass are listed in the table that spans 50 years.
Time Americium-241 Californium-249 Silver-108 Mercury-194
10 years 9.84 g 9.80 g 9.84 g 9.85 g
20 years 9.68 g 9.61 g 9.67 g 9.69 g
30 years 9.53 g 9.42 g 9.51 g 9.54 g
40 years 9.38 g 9.24 g 9.36 g 9.39 g
50 years 9.23 g 9.06 g 9.20 g 9.25 g
Which isotope would be expected to have the longest half-life?
A.
Silver-108
B.
Mercury-194
C.
Californium-249
D.
Americium-241
Which of the following best describes how sound is produced?
Group of answer choices
A) vibrating materials generate beams
B) vibrating particle generates rays
C) vibrating materials generate particles
D) vibrating particles generate waves
pls help due in 20 mins- n pls pls pls no mfkn links
I be giving brainliest :>
Answer:
D) vibrating particles generate waves
Explanation:
Sound is produced when an object vibrates, creating waves that we recognize as sound.
Have a nice day ^-^
the graph that BEST shows the relationship between colour and wavelength is
Answer:
c
Explanation:
c
Consider the properties you can deduce from the periodic table. What do you know about the Noble gases? Select All of models
that represent for gues
Answer:
A), C), and E)
Explanation:
Because i'm built different
Options A and C are the noble gases because their outer shell is complete and they do not react with anyone.
What are noble gases?All seven of the chemical elements that make up Group 18 of the periodic table are considered noble gases. Helium, neon, argon, krypton, xenon, radon, and oganesson are the constituent components (Og). Noble gases are inert, tasteless, odorless, and nonflammable gases. Since it was initially thought that these elements could not link to other atoms, that is, that their atoms could not combine with those of other elements to create chemical compounds, they were typically given the Group 0 designation in the periodic table.
The more suitable name, Group 18, has been given to them as a result of their electrical structures and the discovery that some of them do in fact form compounds.
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What do geoligists use to mark divisions in geologic time? No Files or links. 8th Grade Please help asap.
A- Abrupt changes in the fossil record
B- Frequent episodes of climate change
C- movements of Earth's tectonic plates
D- Rates of radioactive mineral decay
Answer:
A
Explanation:
Option 1 (Best and Easiest Option): Pick an abolitionist from the list of people we study in class today. Write a NEWS ARTICLE on their accomplishments and the impact they made in history. How did their role as an Abolitionist become notable? What did they do? Use 2 pieces of evidence to support your article.
my person is Harriet Tubman
Answer:
I don't know
Explanation:
To be honest I don't know the answer
fill out the blanks, this is for science!
There have been fossils found of a crocodile that lived in both Africa and South America (at the same time period). What does this information and picture suggest?
Answer:
This information suggests that the continents drifted apart.
Explanation:
Pangea was one huge pice of land and over time it broke and drifted apart, making it likley that the continents drifted apart spreading out the fossils.
An Inherited Behavior is taught to the animal after the animal is born.
True
False
which was not an adaptation that enabled amphibians to live on land?
A- Ability to breathe oxygen
B- ability to lay eggs
C- Strong Limbs
D- Thick skin
No links or files 8th Grade
Answer:
I think it is B-the ability to lay eggs.
Answer:
I think B since them being able to lay eggs has nothing to do with whether they are able to live on land.
Explanation:
In a Compton scattering experiment, scattered photon is found to have its wavelength three times of the incident photon for the scattering angle of 180°. Calculate Wavelengths (in nm) of the incident, scattered photon, and Compton shift.
Answer:
Two of Einstein’s influential ideas introduced in 1905 were the theory of special relativity and the concept of a light quantum, which we now call a photon. Beyond 1905, Einstein went further to suggest that freely propagating electromagnetic waves consisted of photons that are particles of light in the same sense that electrons or other massive particles are particles of matter. A beam of monochromatic light of wavelength \lambda (or equivalently, of frequency f) can be seen either as a classical wave or as a collection of photons that travel in a vacuum with one speed, c (the speed of light), and all carrying the same energy, {E}_{f}=hf. This idea proved useful for explaining the interactions of light with particles of matter.
Which of these are NOT an example of an Inherited Behavior,
A bird building a nest
A horse walking just after birth
A bee stinging when it is threatened
A parrot copying the sound of a dog barking
Answer:
It's either the bird or the parrot answer
When the rudder moves to the left the plane will move to the right
Explanation:
the answer is false because when the rudder mover to the left the plane will also move to the left. The plane tilts to go to the left.
When the rudder moves to the left the plane will move to the right or left?
To turn the aircraft, the pilot uses all three flight controls. The rudder is controlled in the cockpit by foot pedals. When the pilot presses the left pedal, the rudder deflects to the left. This deflection creates more lifting force on the right-hand side of the rudder, which moves the plane's nose to the left.
Answer:
The rudder will move to the right
Explanation:
This is using opposite forces and aircraft speeds to identify the modules used to make the rudder move the plane. If the rudder moves right, the plane goes left. If the rudder goes left, the plane goes right.
Hope this helped!
Venn diagrams are used for comparing and contrasting topics. The overlapping sections show characteristics that the topics have in common, and the sections that are unique to each topic show the characteristics that apply to only that topic. This Venn diagram is comparing mechanical and electromagnetic waves.
What could be put into the center section of this Venn diagram?
Answer:
Both carry energy...I'm guessing
Answer:
B.)"Carry energy” and “Follow a pattern”
Explanation:
its almost summer happy 2021
How many paired sets of electrons would be found on an electron dot model of sulfur?
A 1
B 2
C 3
Answer:
b
Explanation:
Which of the following is an example of an Inherited Behavior of an animal.
A dog chasing a cat.
A dog barking at a cat
A dog catching a ball in the air.
A dog panting after it runs.
Answer:
A dog chasing a cat.
Explanation:
When a dog chases a cat, it is usually because they are following their instincts
I really need help can anyone help
Answer:
percentage w a slug preference (start) - 35% (0.35)
percentage w a fish preference (start) - 65% (0.65)
percentage w a slug preference (end) - 25% (0.25)
percentage w a fish preference (end) - 75% (0.75)
hope this helps kind stranger
In one or two paragraphs, explain why identifying the point of view of a political communication is important. Why should informed citizens consider multiple points of view of the political information they are reading, watching, or sharing?
please help
Political communication is important, because it helps politcal parties and people in genral express how they feel and their opinions. Citizens who consider multiple points of views can see the many opinions of every party. Having multiple views, especially in polotics, can help shape one's opinion. Being a citizen in a country where polotics and news are spread around helps inform and tell the citizen the different views of each party. This is especially important when it comes to voting. Hope this helps
Rosalie is doing some gardening, She pushes her 30kg wheelbarrow up a hill at 4 meters per second squared with a force of 120N. What is the mass of the cart?
Answer: smart umm i have no clue
Explanation:
What can you infer about a wave with a long wavelength?
CHOICES:
- It has a high amplitude
- It has a low amplitude
- It has a high frequency
- It has a low frequency
Answer:
It has a high frequency
Explanation:
A wave is the form of sine wave which has crests and troughs. A wave with a long wavelength has a low frequency.
What is the wavelength?Wavelength is the distance between the adjacent crest or trough.
Wavelength is inversely related to the frequency as
f = v / λ
This shows that longer the wavelength, low will be the frequency.
Thus, a wave with long wavelength infers that is has a low frequency.
Learn more about wavelength.
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How can you put a wheel and axle into a rube goldberg machine?
Answer: The wheel and axle is another simple machine. It uses a wheel with a rod attached in the middle as an axle to help it to lift or move loads. In some cases this machine works like a lever to multiply force (like with a doorknob or a fishing reel).
Explanation:
A diver jumps off of the platform and accelerates towards the water at 9.8 m/s2. The diver has a mass of 54 kg. At what force, will the diver jump into the water?
Answer:
The answer is 529.2 N
Explanation:
The Formula for Force is F=M*A
Force equals mass times acceleration,
The mass is 54kg and you multiply that by the acceleration which is 9.8m/s^2
54*9.8= 529.2N
All you have to do is multiply the two numbers when it comes to finding the force.
Nicolaus Copernicus was a Polish astronomer who is best known for the theory that the sun is near the center of the universe and that the earth and other planets revolve around it. Copernicus did not believe that the planets were influenced by or revolved due to the sun; instead he believed that the sun was located near the center of the universe and that it was this center which influenced those bodies and caused them to revolve. When this theory was first published, the scientific community did not accept it. Which reason BEST explains the reason for rejection of this theory? A) It was not published until his death. B) It was not understood by scientific world. C) It lacked sufficient evidence and explanation. D) It lacked practical examples in supporting theory.
Answer:
I believe the answer is B :) Good luck on any work youre doing!!
Explanation:
Which of the following is not true?
a. Some fungi can be used to make medicines.
b. Fungi absorb nutrients from the things around them
c. Kingdom Fungi includes trees and vegetables
d. Fungi are important for their decomposing functions.
Answer:
C
Explanation:
Kingdom Fungi does not include trees and vegetables. It includes mushrooms, mildew, mold, rust, and I think yeast.
Does air defy gravity?
Answer:
If you were to inject air into space what would have happen?
Explanation:
In order for air to defy gravity, it would require atmospheric pressure. But air dosen't defy gravity unless it has the support of atmospheric pressure.
Using The graph to answer 12 and 13. Number 14, 16, and 17 answer don't have to use graph. Please Help ASAP. NO LINKS OR FILES.
12- In The graph Below what events do these arrows mark? What happens during these events?
13- What event appears to have had the greatest impact? Explain your answer in terms of the Graph
14- What are two possible reasons why large poulations of organisms die?
16- Why did new and existing aquatic organisms flourish during the Mesozoic era? Use The terms glaciers, Pangaea, and sea level in your explanation.
17- Approximately how long did Precambrian time last?
A- 0.5 Billion years
B- 3.5 Billion years
C- 4.0 Billion years
D- 4.25 Billion years
Answer:
you stop doing school and say school is a pooping butt hole
Explanation:
No one likes school am I right
HELP I'm not good in science
Which process most likely caused or formed the sedimentary rock:
chemical weathering,
mechanical weathering (abrasion, exfoliation),
erosion and/or deposition?
Justify your answer.
Answer:
Mechanical weathering increases the rate of chemical weathering. As rock breaks into smaller pieces, the surface area of the pieces increases figure 5. With more surfaces exposed, there are more surfaces on which chemical weathering can occur.
Explanation:
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prove p = hdg
please give answer if you know
P = Force/Area
= Weight/Area
= Mass × gravitational field strength/Area
= Density × Volume × gravitational field strength/Area
= Density × Area × height × gravitational field strength/Area
P = height × density × gravitational field strength
Hence, P = hdg
The pressure is the force applied on per unit area of an object. It can also be described as the product of height, density, and gravitational field strength.
What is Pressure?Pressure is the force applied perpendicular to the surface area of an object over which that force is applied. Gauge pressure is the pressure that is relative to the ambient pressure on an object. Various units of power are used to express pressure of an object. The SI unit of pressure is Pascal (Pa).
Pressure of an object can be calculated by the formula:
P = Force/Area
P = Weight/Area
P = Mass × gravitational field strength/Area
P = Density × Volume × gravitational field strength/Area
P = Density × Area × height × gravitational field strength/Area
P = height × density × gravitational field strength
Hence, P = h × d × g
Therefore, the pressure of an object can be calculated as the product of height, density, and gravitational field strength.
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Blank is the up and down movement of blank or blank caused by heat transfer.
Answer:
Blank #1 Convection Current, Blank #2 Liquids, Blank #3 Gasses
Explanation: