Answer:
Two of the electrons are in the first energy level while the other five are in the second energy level.
Explanation:
.
An atom of nitrogen has 2 electrons in first energy level and 5 electrons in second energy level.
What is an energy level?Electrons present in an atom revolve in different orbits which are stationary states and are also called as energy levels. The energy levels are numbered as integers which are also called as principal quantum numbers.
Energy of the stationary state is given as E= -R
1/n² where R
is the Rydberg's constant. When an electron is excited, and it moves from lower to higher energy levels there is absorption of energy, while when it moves from higher energy level to lower energy level it radiates or gives out energy in the form of radiation.
They can also be defined as the distances between electron and nucleus of an atom . Electrons present in K energy level have least energy .Energy level diagrams are studied to understand nature of bonding , placement of electrons in orbits and and elemental behavior under certain conditions.
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What does it mean when something asks to put a proposed hypothesis?
After water is heated up, its thermal enrgy becomes what energy?
After water is heated up, its thermal energy becomes kinetic energy. Kinetic energy is the energy of motion, and when water is heated, the energy of the heat causes the molecules in the water to move faster. This increase in movement results in an increase in kinetic energy.
Heat is a form of energy that is transmitted between two objects or systems that are at different temperatures. When heat is added to a substance, such as water, it increases the kinetic energy of the molecules in the substance, causing them to move faster and resulting in an increase in temperature. The thermal energy of the water is converted into kinetic energy as the molecules move faster and the water becomes hotter.
It is important to note that the transfer of heat between objects or systems is governed by the laws of thermodynamics, which dictate how energy can be transformed and exchanged.
The distance versus time graph for Object A and Object B are shown.
A graph titles Distance vs Time. A straight slanting line is drawn through point 7 on y axis and this line is labeled Object A. The graph for Object B is a straight slanting line passing through the origin
What is the similarity between Object A and Object B?
Both have the same slope.
Both move with variable speed.
Both move with constant speed.
Both start the journey from the same point.
Please answer!! <3
Answer:
3
Explanation:
Both move with constant speed.
You design toys for a toy company. Your boss wants you to hook up the lights in the toy car you are working on in the cheapest way possible, without consideration of the quality of the toy. Which circuit should you use if you want to save money by using fewer parts? Why would this circuit be cheaper?
Parallel circuits because, electrons continue to flow in a parallel circuit even if part of the circuit is broken
Light with a wavelength of 5.0 · 10-7 m strikes a surface that requires 2.0 ev to eject an electron. Calculate the energy, in joules, of one incident photon at this frequency.
_____ joules
4.0 x 10 -19
9.9 x 10 -32
1.1 x 10 -48
4.0 x 10 -49
Answer:
They are: -14 joules.
And the other answer is: 9.9 x 10-32.
Explanation:
Since to convert to joules it is necessary to add 4 with 9 decimal places to the first number and to the second number 25 decimal places are added.
--- Since 5.0 plus 4 and 9 decimals is: 9.9
--- As 10 - 7 plus 25 decimals: 10 - 32
--- And 9.9 in joules is 8.0 x 10 - 32 = - 22 and 8.0 x -22 is - 14. So they are - 14 joules.
--- And the other answer is: 9.9 x 10- 32
I hope I have helped.
What is the name for a quantity that is only a magnitude?
A. Vector
B. Scalar
C. Coordinate
D. Force
Answer:
The correct answer would be B) Scalar
Calculate the change in the kinetic energy (KE) of the bottle when the mass is increased. Use the formula
KE = one half.mv2, where m is the mass and v is the speed (velocity). Assume that the speed of the soda bottle falling from a height of
0.8 m will be 4 m/s, and use this speed for each calculation.
Record your calculations in Table A of your Student Guide.
When the mass of the bottle is 0.125 kg, the KE is
kg m2/s2.
When the mass of the bottle is 0.250 kg, the KE is
kg m2/s2.
When the mass of the bottle is 0.375 kg, the KE is
kg m2/s2.
When the mass of the bottle is 0.500 kg, the KE is
kg m2/s2.
Answer:
The answers are the options 1, 2, 3, and 4
Explanation:
If you have any questions ask me please! :)
The kinetic Energy of the bottle falling from a height of 0.8m for different masses of (0.125,0.250,0.375,0.500)kg is (1,2,3,4) kgm*2/s*2 respectively.
Let's calculate the kinetic energy for different masses having a velocity of 4m/s in each case,
Using Formula:
K.E=\(1/2mv^{2}\)
When the mass of the bottle is 0.125 kg, the Kinetic Energy is
K.E=\(1/2(0.125)(4)^{2}\)
K.E=\(1/2(0.125)(16)\)
K.E=1/2(2)
K.E=1
When the mass of the bottle is 0.250 kg, the Kinetic Energy is
K.E=\(1/2(0.250)(4)^{2}\)
K.E=1/2(0.125)(16)
K.E=1/2(4)
K.E=2
When the mass of the bottle is 0.125 kg, the Kinetic Energy is
K.E=\(1/2(0.375)(4)^{2}\)
K.E=1/2(0.375)(16)
K.E=1/2(6)
K.E=3
When the mass of the bottle is 0.500 kg, the Kinetic Energy is
K.E=\(1/2(0.500)(4)^{2}\)
K.E=1/2(0.500)(16)
K.E=1/2(8)
K.E=4
Now we can calculate the change in kinetic energy (ΔKE):
ΔKE = KE(final) - KE(initial)
= 4 kg m*2/s*2 - 1 kg m*2/s*2
= 3 kg m*2/s*2
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Any other Gypresgions come from shakespeare and are they used today?
Answer:Both books find Shakespeare deeply Catholic, but they reach very different conclusions about what that meant in his life and work during a time of official Protestantism, the Jesuit mission to England, and sharp divisions among Anglicans, Puritans, and Catholics.
Explanation:
What are the implications of Pascal's Law?
determination of pressure which can be exerted on the fluid
What is an ecosystem? Group of answer choices An ecosystem is all different populations of animals in an area. An ecosystem is a community of plants and animals and their physical surroundings. An ecosystem is a single example of a particular species of plant or animal. An ecosystem is all the organisms of a particular kind of species and their surroundings.
Answer: An ecosystem is a community of plants and animals and their physical surroundings
Explanation: An ecosystem is a geographic area where plants, animals, and other organisms as well as weather and landscape work together to form a bubble of life. Ecosystems contain biotic and abiotic factors both. Biotic factors include plants, animals, and other organism
Answer: An ecosystem is a community of plants and animals and their physical surroundings.
Explanation: Ecosystem plays an essential role for the existence of living organisms in the planet Earth. A balanced ecosystem is attained as a result of various reasons it includes the live ratio of diverse varieties of organisms in a particular ecosystem, necessary physical, biological, and chemical conditions that promotes the living of organisms, and the balanced atmosphere attained as the result of temperature, wind, and humidity.
As all the above mentioned properties are necessary for maintaining a sustainable ecosystem, it is clearly understood that an ecosystem is a community of plants and animals and their physical surroundings.
A meteor falls toward Earth's surface. Given that the acceleration due to
gravity is 9.8 m/s^2, what is the meteor's potential energy if it has a mass of 10
kg at an altitude of 400 m?
O A. 408 J
O B. 7,840,000 J
O C. 2J
O D. 39,200 J
Answer:
39,200J
Explanation:
just took the test
The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J
What is potential energy ?Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.
mass(m) = 10kg
g (acceleration due to gravity) = 9.8m/s^2
altitude(height (h)) = 400m
Meteor's Potential energy = m * g * h
= 10 * 9.8 * 400 = 39200 J
correct option will be a) 39200 J
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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.
What are the positive and negative effects of the mountain-climbing trade on the local environment and economy? 3-5 sentences, please thx
I need answers to these questions PLEASE I HAVE 5 MINS
Answer:
(1) 1915
(2) Proxima b was first detected four years ago by an older spectrograph, HARPS ("High Accuracy Radial Velocity Planet Searcher"), which is installed on a scope at ESO's La Silla Observatory in Chile But with these newer observations, scientists have an updated, ultra-precise view of the planet.
(3) Researchers from Penn State University are examining a signal that was detected by a radio telescope pointed at Proxima Centauri. ... The sixty-four-meter radio telescope at Parkes Observatory in Australia was used to detect the potential signals from Proxima Centauri.
(4) The sixty-four-meter radio telescope at Parkes Observatory in Australia was used to detect the potential signals from Proxima Centauri. He told the New York Times that the signal appears to only shop up in their data when they are looking in the direction of Proxima Centauri
(5) Spacecraft Made from Ultra Thin Foam Could Reach Proxima Centauri in Just 185 Years. A hypothetical spacecraft made from an extremely thin layer of a synthetic foam could technically make it to our closest neighboring star Proxima Centauri in just 185 years, scientists have said.
(6) A spacecraft with a shell 1 micrometer thick that was released far closer to the sun—0.04 AU, or around 3.7 million miles—could pick up a speed of almost 6,900 kilometers per second (4,300 miles per second)," the team wrote. This would allow it to reach Proxima Centauri in around 185 years.\
(7) If humans are ever to colonize the galaxy, we will need to make the trip to a nearby star with a habitable planet. Last year, astronomers raised the possibility that our nearest neighbor, Proxima Centauri, has several potentially habitable exoplanets that could fit the bill. Proxima Centauri is 4.2 light-years from Earth, a distance that would take about 6,300 years to travel using current technology. Such a trip would take many generations. Indeed, most of the humans involved would never see Earth or its exoplanet counterpart. These humans would need to reproduce with each other throughout the journey in a way that guarantees the arrival of a healthy crew at Proxima Centauri.
Explanation:
What are Saturn’s rings mostly made of?
A.
nitrogen and helium
B.
ice and water vapor
C.
volcanic dust particles
D. chunks of ice and rock
Answer: It should be D
Explanation:
You probably use the term heat many times a day. As an example, when you cook, dinner, you heat your dinner on a hot stove. When you place a piece of cool metal in the sun, it is heated by the sun’s energy. Why is heat the correct term to use in these examples?
A. They show that when objects are touching, they are the same temperature.
B. They show that heat flows from something warmer to something cooler.
C. They indicate that heat is created to raise the temperature of something.
D. They indicate that the kinetic energy of the particles decreases when something is heated.
Answer: Pretty sure it is B
Explanation:
When you cook, dinner, you heat your dinner on a hot stove. When you place a piece of cool metal in the sun, it is heated by the sun’s energy. Heat is the correct term to use in these cases because they show that heat flows from something warmer to something cooler. So, option(B) is correct.
What is heat?As a result of a temperature difference, energy is transferred from one body to another and is known as heat. The hotter body transfers energy—heat flows—from the cooler body when two bodies with different temperatures are brought together.
An increase in the temperature of the colder body and a reduction in the temperature of the hotter body are typically, though not always, the results of this energy transfer.
A substance can absorb heat without increasing in temperature by transitioning from one physical state (or phase) to another, such as melting, sublimation, boiling, or shifting from one solid form to another (usually called a crystalline transition).
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help me pls i need the answer
Why did the chicken cross the road?
(excepting any answers)
Answer:
to get to other side
because it could not be stopped by death
need help fast!!!! plz
Please help me I will give the first person to answer brainiest
The greater the altitude, the greater the potential energy.
Highest Potential energy
A person in an airplane in the skyPosition A on the roller coasterPosition C on the roller coasterPosition D on the roller coasterPosition B on the roller coasterA person standing on the groundLowest Potential Energy
Answer:
1) A person in an airplane
2) Position A on a roller coaster
3) Position C on a roller coaster
4) Position D on a roller coaster
5) Position B on a roller coaster
6) A person standing on the ground
Explanation:
All in that order. : )))
What is a major drawback of nuclear energy? (1 point)
Answer:
Nuclear waste
Explanation:
It is extremely radioactive and can remain radioactive for hundreds of years.
Need help with 2 and 3
pls help, due in 1 1/2 hours
(GIVING 20 POINTS)
imagine submitting a question on here-
anyways-help me<3
Answer:
Well this is what you need to do
Explanation:
You multiply the numbers with exponents 1st then just multiply the numbers
Please help: The average depth of water in a place near the coast of th Pacific ocean is 5.om. The largest tidal range in that place is 2.0m. Calculate the maximum depth of water at that place. please do not attempt to steal points... thank you <3!
Answer:
The maximum depth of the water at the place is 6.0 meters.
Given the tidal range and average depth, it is to be noted that the maximum depth of the water at the place, is 6.0 meters.
How can you calculate Maximum Depth using Average Depth and Tidal Range?The tidal range is the successive difference between tide highs and lows, which is a sinusoidal pattern. On the basis of the above, it is correct to state that the tidal range is twice of the amplitude of the tide level.
That is:
The Amplitude of the tide, A = 2.0/2m = 1m
The maximum depth at the place, therefore, is given as:
D\(_{max}\) = A + D\(_{ave}\)
Hence,
D\(_{max}\) = 1.0 + 5.0 = 6.0
Thus, it is correct to state that the Maximum Depth (D\(_{max}\)) = 6.0 Meters.
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The first and second laws apply to _________________ objects.
single or multiple
no
multiple
single
Answer:
multiple
Explanation:
A spaceship fires a movement thruster, releasing gases at high pressure.
What are the forces in the force pair for this example?
a) the force the gasses apply to the ship
the force the ship applies to the gasses
b) the force the gasses apply to space
the force the ship applies to the gasses
c) the force the gasses apply to space
the force the ship applies to gasses
d) the force the gasses apply to the ship
the force the ship applies to space
Please can someone help me need help with these 5 questions!! and QUICK!
I need it done REALLLLLYYYYY soon!! (more like now but-)
(20 points for the answer to all of them)
Answer:
10. dependent as a change has occurred which has affected something else which is measurable.
11. dependent as a change is made to the environment this is why some species cannot live there as they have adapted to the climate.
12. Dependent due to change occurring it has resulted in the population decreasing which is measurable.
13. Dependent as the animal's and plants' survival is reliant on the environment.
14. Dependant as the plants require sunlight for photosynthies
Answer:
All are dependent
Explanation:
Explain the difference between trace fossils and body fossils. Provide examples of each type.
Answer:
trace fossils are evidence of biological activity, such as worm trails, footprints, or animal tracks
body fossils are the remains of an organism such as teeth, bones, and shells
Explanation:
Lab Report
Motion and Forces
It’s time to complete your Lab Report. Save the lab to your computer with the correct unit number, lab name, and your name at the end of the file name (e.g., U4_ Lab_MotionAndForces_Alice_Jones.doc).
Introduction
What was the purpose purpose of the experiment?
The purpose of the experiment is to test the hypothesis.
What were the independent, dependent, and control variables in your investigation? Describe the variables for each part of the experiment.
Write a hypothesis based on observations and scientific principles.
Type your answer here:
Experimental Methods
What tools did you use to collect your data?
Questionnaires and observations.
Write your procedure. List each step so that another student could follow the procedure and repeat your experiment.
Type your answer here:
Data and Observations
Record your observations.
Type your answer here:
Conclusions
What conclusions can you draw about how the sum of forces acting on an object affect its motion? Write an evidence-based claim.
Type your answer here:
Which mass, A, B, or C, was the greatest? Use the observations from your experiment and your knowledge of Newton’s laws of motion to write an evidence-based claim.
Type your answer here:
Make a model that shows the forces acting on two blocks on a flat, frictionless surface:
A 1 N block at rest
A 1 N block with 2 N of force applied in one horizontal direction
Include arrows to represent the forces and labels to indicate the magnitude of each force. Use your model to compare and explain the motion of each block.
Type your answer here:
Answer's C
Explanation: The matter that surrounding this whole planet or time and frequencies the motion and forces that people can't determine unless made a hypothesis
The greater the mass of an object,
a.the more space it takes up
b.the more balanced it is
c.the easier the object starts moving
d.the greater its inertia
Answer:
d.
Explanation:
Mass is the measurement of interia in physics.