Answer:
(C)
Explanation:
its C ok
The transition that will lead to the emission of light with longer wavelengths is n = 3 to n = 2. The correct option is c.
What is the emission of light?The largest energy change, and hence the shortest wavelength, x nm, would occur during the transition from the highest to the lowest energy levels. When an electron moves from the n = 5 to the n = 1 level, an atom emits yellow light.
The Bohr model of the atom is named for Niels Bohr, who created a model of the electron in which electrons were arranged into energy levels using observations of atomic spectra.
Because electrons can only exist in the energy levels and not in the intermediate states, they must absorb or emit a certain amount of energy to change energy levels.
Therefore, the correct option is c. n = 3 to n = 2.
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The question is incomplete. Your most probably complete question is given below:
a. n = 1 to n = 3
b. n = 4 to n = 3
c. n = 3 to n = 2
d. n = 3 to n = 1
e. n = 2 to n = 3
What is the force of a object that has a mass of 7 kg and an acceleration of 6 m/s/s
Answer:
42 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question
mass = 7 kg
acceleration = 6 m/s²
We have
force = 7 × 6 = 42
We have the final answer as
42 NHope this helps you
a cart is constrained to move along a straight line. a varying net force along the direction of motion is exerted on the cart. the cart’s velocity v as a function of time t is shown in the graph above. the five labeled points divide the graph into four sections. for which segment does the cart move the greatest distance?
From the graph, the segments that move the greatest distance are AB and DE.
We have,
From the graph,
The y-axis is the speed.
The x-axis is the time.
This means,
Speed = Distance / Time
So,
The horizontal line is the distance.
Now,
There are 5 points: A, B, C, D, and E.
There are four parts:
AB, BC, CD, and DE.
On the graph.
So,
I part = 1/3 = 0.33
The distance covered in each part is:
AB = 2 parts = 2 x 0.33 = 0.66
BC = 1 part = 0.33
CD = 1 part = 0.33
DE = 2 parts = 2 x 0.33 = 0.66
Thus,
The segments that move the greatest distance are AB and DE.
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3. In Figure 2, which object (A, B, or C) has the highest density? Why?
Answer: C Because it has more dots in the rectangle meaning that if it has more dots than others then it has a higher density according to the model
Explanation:
What needs to be applied in order to change an object's momentum?
a. kinetic energy
b. impulse force
c. a new velocity
d. it’s mass
Answer:
B
Explanation:
if you want to change an object's momentum you need to apply force to the object
Describe how acceleration happens in the context of a collision.
Plz help<3
Answer:
(Hope this helps can I pls have brainlist (crown)☺️)
Explanation:
In a collision, both objects are subjected to a force that causes them to accelerate. Despite the fact that the forces are equal in magnitude and direction, the least massive item experiences the highest acceleration. When two objects of identical mass collide, they both experience the same acceleration.
A collision is a brief encounter between two or more bodies that results in a change in motion of the bodies involved as a result of internal forces acting between them. Forces are involved in collisions (there is a change in velocity ).
which plane divides the body into right and left halves
what do the tropopause stratopause and mesopause have in common
Each is a zone of decreasing water vapor content within the atmosphere. ... Each is an interface between two layers of the atmosphere. Each is a point of maximum temperature in its layer of the atmosphere.
Is this speed, velocity or acceleration
Answer:
Speed
Explanation:
There is no other information that involves or asks about the velocity or acceleration. Since that rules out two you will be left with one only option.
You push a friends sitting on a swing. If you push with 200N of force and your friend accelerates at a rate of 4 m/s^2. Find the mass of your friend.
e friend sitting on the swing = 50 kg
Rate of acceleration = 4 m/s^2
The above information's are already given in the question. We need to utilize these information's in such a manner that the answer to the question can be determined easily.
We already know that
Force = Mass * acceleration.
This formula has to be used to find the force exerted.
Then
Force exerted = Mass of the friend * Acceleration
= (50 * 4) kg m/s^2
= 200 Newton
So the force exerted by me is 200 Newton. I hope the explanation and the procedure is clear to you and you are satisfied with it.
Which are examples of chemical weathering? Choose the two correct answers. (1 poir
-rock breaking apart during a rock slide
-an insect digging a hole in rock for its home
-oxidation of certain metals in rock
-an increase in temperature in daytime causing a rock to crack
-acid rain breaking down compounds in rock statues
Oxidation of certain metals in rock and acid rain breaking down compounds in rock statues are examples of chemical weathering.
What is chemical weathering?
When chemicals are diluted and dissolved in water, they seep and percolate down the surfaces of rocks, causing chemical weathering. Chemical weathering occurs in humid tropical regions and other places with high temperatures and a sufficient supply of water.
The reaction of chemicals in water or air causes minerals to change in composition as chemical weathering takes place. Additionally, this causes the breakdown of rocks. Leaching is the process of carrying away some components of rock breakdown through rocks and soil.
These materials may eventually be transported by the water to rivers and the sea. The oceans' saltiness comes from this source. Oxidation, the breakdown of calcium carbonate, and acid rain breaking down compounds in rock statues by chemical reaction are examples of chemical weathering.
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Aristotle supported which of these views?
A. The Sun and all the planets revolve around Earth.
B. The speed of a free-falling object is independent of its weight.
C. Earth and other planets revolve around the Sun.
D. Every action has an equal and opposite reaction.
E. The fifth element, ether, does not exist in heavenly bodies.
(PLEASE HELP ME)
Answer:
I am pretty sure that it is A. The Sun and all the planets revolve around Earth. Hope this helps!!!!!
Explanation:
I need help filling this in
Answer:
smaller and further from
Explanation:
Pass light through something clear and light, you'll most likely be able to see all of it's rays spread out, the "normal." Now, pass it through something dense, the amount of light will shrink, therefore be further from the "normal."
1. Ethan is dragging a bag of grass from the garage to the street on the evening before garbage pick-up day. The diagram at the right is a free-body diagram. It uses arrows to represent the forces acting upon the bag. Each force is labeled according to type. The magnitude of the force is represented by the size of the arrow. Use the free body diagram to determine the net force acting upon the bag. The values of the individual forces are:
Fgrav = Fnorm = 60.5 N
Fapp = 40.2 N
Ffrict = 5.7 N.
From the calculations and the free body diagram, the net force that acts on the body is 34.5 N
What is the net force?The net force refers to the force that is acting on a body. Let us note that the gravitational force and the normal force cancel out each other. Thus the two force that act on the body are the applied force and the frictional force.
Thus;
The net force that acts on the body is;
40.2 N - 5.7 N = 34.5 N
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I NEED HELP I AM SO CONFUSED, WILL GIVE BRAIN.
A stone is dropped from the roof of a building. It took 5 s for the stone to reach the ground. What is the height of the building?
Answer:
[tex]resolving \: \\ (\downarrow_{ + }) \: s = ut + \frac{1}{2} g {t}^{2} \\ u = 0 ,\: g = 9.81m. {s}^{ - 2} , \: t = 5s \\ s =h= \frac{1}{2} g {t}^{2}, = \frac{1}{2} (9.81){5}^{2}\\=4.9\times25 \\ h=122.6m[/tex]
How are melting and carving ice sculptures both examples of physical changes ?
Answer:
they are still keeping the physical componets justbin a different shape
Explanation:
Answer:
As an ice cube melts, its shape changes as it acquires the ability to flow. However, its composition does not change. Melting is an example of a physical change .
Which action is due to field forces
Answer:
:)
Explanation:
Raindrops fall on the earth due to gravitational field force. When two magnets come closer to each other, they will either attract or repel each other, which is magnetic field force examples. Without any physical contact, iron pins get attracted towards the magnet as a field force.
I need help please
I’ll give BRAINLIST for correct answers!!
Answer:
1. the graph is showing the speed of the object at different times.
Explanation:
2. the object is slowing down
Một đoạn mạch gồm R1=8 ôm;R2=12 ôm.biết R1 nối tiếp với đoạn mạch gồm R2 song song với R3; R3=1/2 R2 cường độ dòng điện chạy qua mặt chính là 2A
a. Hãy vẽ sơ đồ mạch điện trên
b. Tính điện trở tương đương toàn mạch
c. tính cường độ dòng điện qua mỗi điện trở
Answer:
Explanation:
a.
b. R3= 1/2R2=6 ôm
R12= R1+R2=20 ôm
Rtđ=R12.R3/R12+R3= 4,62 ôm
c. U= I.Rtđ = 2.4,62=9,23 V
I1=I2= 9,23/20= 0,4615 A
I3= 2-0,4615=1,5385 A
according to newton’s second law, if there is a net force, there will be
Answer:
The object will have an acceleration and the object's velocity will change.
Explanation:
If there is a net force acting on an object, the object will have an acceleration and the object's velocity will change. Newton's second law states that for a particular force, the acceleration of an object is proportional to the net force and inversely proportional to the mass of the object.
PLS MARK BRAINLIEST
PLEASE HELP. SO HARD. SCIENCE ASSIGNMENT. ASAP
why does the light of black body radiation change
The wavelength at which the radiation is strongest is given by Wien's displacement law, and the overall power emitted per unit area is given by the Stefan–Boltzmann law. So, as temperature increases, the glow color changes from red to yellow to white to blue.
When a basketball player jumps to make a shot, once the feet are off
the floor, the jumper's acceleration
There's no question.I think these are just the answer choices
Barnard's star distance from earth in light years
Answer:
5.978 años luz
Explanation:
Hi! Your answer is: The distance between the Barnard's star and Earth is 5.978 light years.
What would be the new pressure if 250 cm3 of gas at standard pressure is compressed to a volume of
150 cm3?(
= constant)
V
n
T
Р P.
Initial
Final
Effect
Answer:
P T V n
Initial: 730 mmHg; 298 K; 250 cm³; --
Final: 760 mmHg; 273 K; ?; --
Effect: ↑; ↓; ↓P ↓T; --
250 cm³ x 273 K/298 K x 730 mmHg/760 mmHg = 220 cm³
Explanation:
inimbita ka ng iyong kamag aral na magpunta pagkatapos ng inyong klase sa isang video shop na malapit sa inyong paaralan ngunit nag bilin ang nanay mo na umuwi ka nang maaga dahil mayroon siyang ipagagawa sa iyo ano ang gagawin mo?
Answer:
sabihin sa kamag-aral na deh muna ako sasama kasi may papagawa pa nanay ko Sakin.
Explanation:
pa brainliest
When a roller coaster gets to the bottom of a descent, describe the energy transfers and changes to energy stores that happen if:
a) the brakes are applied to stop it
b) it goes up and over a second hill.
Answer:
its B
Explanation:
It's B & A at the same time because A. a roller coaster uses brakes to slow down and stop. B is the most reasonable answer. Because all roller coasters go up and over a second time over the hill, but they also slow down. But go with B.
TELL ME IF I´M RITE
PLS HELP
What is the gravitational force acting on a 53 kg object standing on the surface of the Earth?
a) 5.3 N
b) 63N
c)48N
d) 530N
Answer:
D.
Explanation:
DId the test
The gravitational force acting on the body of mass 53 Kg on earth will be 530 Newtons.
What is Weight ?
Weight is the force exerted by earth on a body on the surface of earth. Mathematically -
W = mg
Given is a 53 kg object standing on the surface of the Earth.
The gravitational force acting on the body will be same as it weight and will be directed towards the center of earth. Using the formula for weight -
W = mg = 53 x 10 = 530 N [taken g = 10 m/s²]
Therefore, the gravitational force acting on the body of mass 53 Kg on earth will be 530 Newtons.
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HELP PLZZZZZZZZZZZZZ
Answer:
A and B and D and C
Explanation:
Answer: I would say (A) (D) and (C)
Explanation: I am doing the same thing in my class as well.
Hope this helped. :-)
Have a wonderful day!!
What happens when you sit in a
chair?
A. Gravity is pulling you down but the chair
pushes you up with equal force.
B. Gravity is pulling you down and the chair
pushes you up into the air.
C. There is no force being exerted.
D. Gravity is pulling you down and the chair is
sliding sideways.
Answer:
B
Explanation:
that is the only way you can sit
Sound waves travel at a speed of 330.0 m/s . How long does it take for the sound of thunder to travel 1.5 km ? (20points)
4.55 seconds
Step-by-step explanation:-Given, Speed = 330.0 m/s
To find the time, it will take for the sound of thunder to travel 1.5 km, we have to apply the formula for speed :
[tex]speed = \frac{distance}{time} [/tex]
This implies that:-
[tex]time = \frac{distance}{speed} [/tex]
So, Let's get started with the steps -
Step 1- Convert 1.5 km to metres.
[tex]1.5 \: km \: \\ = > \: 1.5 \times 1000 \\ = > 1500 \: m[/tex]
Step 2- Now, to get time, substitute the values you got now in "time=distance/speed"
[tex]t = \frac{1500}{330}[/tex]
[tex] => t = 4.55 \: seconds[/tex]
Therefore, the answer is 4.55 seconds
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