Physics High School

Which change would create light?
A. An electron in an atom jumping from a lower energy state to a higher one.
B. Two electrons from the same atom colliding
C. An electron in an atom jumping from a higher energy state to a lower one.
D. Two electrons from two different atoms colliding.

Answers

Answer 1

Answer:

Im not 100% sure but i think the answer is A. An electron in an atom jumping from a lower energy state to a higher one.

Explanation:

lmk if its wrong

Related Questions

An electron has a mass of 9.1x10-31 kg. What is
its momentum if it is travelling at a speed of
3.5x10 m/s?

Answers

Answer:

3.185×10^-29 kgm/s

Explanation:

Momentum(p)=mass×velocity

=9.1×10^-31×3.5×10

=3.185×10^-29 kgm/s

Which one of the following properties apply to both waves and particles?

A) Photoelectric Effect
B) Diffraction
C) Refraction

Answers

Answer:

b

Explanation:

sorry if im wrong

what's Quantum Mechanics?​

Answers

Answer:

The branch of mechanics deals with the mathematical description of the motion and interaction of subatomic particles, incorporating the concepts of quantization of energy, wave–particle duality, the uncertainty principle, and the correspondence principle is Quantum Mechanics.

Answer:

Explanation:

Quantum Mechanics is a branch of physics that deals with sub-atomic particles and their energy states. Its theory says at subatomic level, energy exists in discrete levels as "quanta" and particles behave as waves.

How do the properties of the planets change as you move away from the sun?

Answers

Answer:

as we move away from the sun the velocity of the planet decreases

the shock absorbers in a car act as a big spring with k= 21900 N/m. when a 92.5 kg person gets in, how far does the spring stretch?

Answers

Answer: 0.04139m

Explanation:

First, we need to calculate the weight of the man which will be:

Weight = mass × acceleration due to gravity

Weight = mg

Weight = 92.5 × 9.8

Weight = 906.5N

Then, we calculate the force which will be:

F = kx

mg = kx

x = mg/k

x = 906.5/21900

x = 0.04139m.

The spring stretched for 0.04139m.

What type of liquid would never freeze

Answers

Answer:

gas

Explanation:

gasoline will never freeze up

Answer:

Alcohol

Explanation: I'm not sure

What is the average kinetic energy (temperature) of
sample A

Answers

I think the answer is A

Which is a benefit of a scientific model?
A.) It provides a complete image of the concept it is modeling.
B.) It provides an accurate scale of the concept it is modeling.
C.) It provides an accurate visual representation of the texture and coloring of the concept it is modeling.
D.) It provides a useful understanding of the concept it is modeling.

Answers

D.) it provides a useful understanding of the concept it is modeling.

What is one problem that you think needs to be solved so that your future is safer for your children?

Answers

Answer:

Systemic racism

Explanation:

A set of charged plates have an
area of 8.22*10^-4 m^2 and
separation 2.42*10^-5 m. The
plates are charged with
5.24*10^-8 C. What is the
potential difference V between
the plates?
(Unit = V)

pls hurry <3

Answers

Answer:

175

Explanation:

its for Acellus

The potential difference is V=1.743*10^-7

The voltage is generally referred to as the electric potential difference and  it can be measured using a voltmeter. The electrical potential difference between the two plates is expressed as q=CV.

CALCULATION

we know,

q=CV

q={EA/d}*V

here q= 5.24*10^-8C

       A=8.22*10^-5m^2

       d=2.42*10^-8m

therefore , C={( 8.85*10^-12)*(8.22*10^-5)}/(2.42*10^-8)

                 C=3.006*10^-1

q=CV

q/C=V

V=1.743*10^-7

refer https://brainly.com/question/26733095

#SPJ2

a 20 A fuse is connected in series with a circuit containing a 240 V source. What is the minimum resistance required to prevent the fuse from melting

Answers

Answer:

12 ohms

Explanation:

you just divide 240 and 20

240 V/ 20 A = 12 ohms

A ball is released from a height of 20 metres. Calculate; 1. The time it takes to fall 2. The velocity with which it hits the ground

Answers

Answer:

Final velocity of ball = 20 m/s

Explanation:

Given:

Height when ball released = 20meter

Find;

Time taken to fall

Final velocity of ball

Computation:

Initial velocity of ball = 0 m/s

Acceleration due to gravity = 10 m/s²

Using equation of motion;

S = ut + (1/2)(g)(t²)

20 = (0)(t) + (1/2)(10)(t²)

20 = 5(t²)

(t²) = 20 / 5

(t²) = 4

Time taken to fall = 2 second

V = u + at

V = 0 + (10)(2)

Final velocity of ball = 20 m/s

An incline plane is 12-m long and 4-m high. A block is pulled up the ramp with a spring scale. The reading on the spring scale is 70-N. How many Newtons would the block actually weigh if you had to lift it the 4-m height?

Answers

Answer:

W = 210 N

Explanation:

For an ideal machine:

[tex]Work\ In = Work\ Out\\(P)(L)=(W)(H)[/tex]

where,

P = Effort = Spring Scale Reading = 70 N

L = Effort Arm = Length of inclined plane = 12 m

W = Actual Load (Weight) to be lifted = ?

H = Load Arm = Height = 4 m

Therefore,

[tex](70\ N)(12\ m) = (W)(4\ m)\\\\W = \frac{(70\ N)(12\ m)}{4\ m}[/tex]

W = 210 N

Explain what cardiovascular exercise is in your own words. Explain the benefits of it and how it is different than muscular strength. Give 3 examples of cardiovascular exercises/activities

Answers

Cardiovascular exercise is a form of exercise that can build up your respiratory fitness and improve you endurance. It is different from muscular strength because it is more about endurance then repetition which is need for muscular strength. 3 example of cardiovascular fitness are running, swimming, and biking. Hope this helps

9. How is spring potential energy determined from a force versus position graph?

Answers

Answer: The potential energy associated with a mass attached to a spring depends on how much the spring is stretched or compressed. ... The gravitational force on the mass is −mg (“−” because the force points down). The force is the negative of the slope on the potential energy versus position graph.

Explanation:

:)

By getting the data from the graph of force versus displacement we can calculate the Potential energy of the spring.

What will be the potential energy?

As we know that potential energy is defined as the energy possessed by the body due to its position with respect to other positions.

For an example the potential energy of an object if it is placed at height h will be due to the gravitational acceleration of the earth and is given by  [tex]PE=mgh[/tex]

Similarly, for a spring-mass system, the potential energy will be due to the weight of the mass that will be the force exerted by the mass on the spring so there will be an extension in the spring.

So this extension will be found out by the force and displacement  graph as the position of the mass attached to the spring goes down so the potential energy can be calculated as the

[tex]PE= F\times X[/tex]

[tex]F=mg[/tex]  weight of the mass

X= deflection of the spring

Thus by getting the data from the graph of force versus displacement we can calculate the Potential energy of the spring.

To know more about potential energy follow

https://brainly.com/question/24933254

Question 8
Swimming in an open body of water (like a river, lake, or ocean) is different from swimming in a

Answers

Answer:

pool

Explanation:

I think

Answer: Pool

Hope this helps

verdadero o falso de La energía interna es la energía térmica asociada al objeto en virtud del movimiento de sus moléculas.

Necesito ayuda, porfa.

Answers

Answer:

Es la energía cinética interna total de un objeto debido al movimiento aleatorio de sus ... a es la energía que posee un objeto o cuerpo en virtud del movimiento de sus ... Si el movimiento de estas moléculas y átomos es más rápido, se dice que el ... Por lo tanto, la energía térmica asociada con la conducción resulta de la .

Explanation:

Other Questions
How do guest room hotel smoke alarms work and differ then regular home versions? Yall I need help ASAP tell me if the one I choose are correct NO LINKS !!!! His eyes are 1.83 m above the floor, and the top of his head is 0.15 m higher. Find the height above the floor of the top and bottom of the smallest mirror in which he can see both the top of his head and his feet. True or falseThe study of where organisms live and how they got to specific places is called Biodiversity . The image below represents two waves X and Y, traveling to the same medium at the same speed how are the two waves different? Read the following paragraphs:Todos los das yo como el desayuno a las seis y media de la maana. Yo como el pan tostado y bebo el caf. A veces no lo(1) bebo y tengo un vaso de jugo de naranja. Los domingos yo no como el pan tostado porque mis padres y yo comemos los huevos. Mi hermana no los(2) come porque come el cereal los domingos.A las doce y cuarto de la tarde voy al caf y tomo el almuerzo. A veces como una pizza pero no la(3) como los lunes porque siempre como un bocadillo de jamn y queso. El bocadillo es muy grande y tiene pavo (turkey), lechuga, tocino, queso y mayonesa. El caf slo lo(4) vende el lunes. Mi amigo Andrs siempre come las verduras y l las(5) comparte con nosotros. Tambin yo bebo un refresco muchos das, pero los viernes, no lo(6) bebo porque el caf vende batidos de chocolate.Al fin del da a las siete mi familia tiene la cena. Comemos las hamburguesas muchas veces pero tambin tenemos pollo, pescado, enchiladas y ensaladas. Mi comida favorita es una hamburguesa. Mi familia la(7) come muchas veces los sbados y los domingos a veces con las papas fritas. Yo la(8) tengo con lechuga, tomate, cebolla (onion) y queso. Mis padres la(9) comen con queso y tomate. Despus de la cena tenemos un postre. Yo como el helado con chocolate. Pero mi hermana no lo(10) come porque ella come una torta de chocolate.Write down what the underlined direct object pronouns refer to in the story above:12345678910Please help. Multiple Select: Multiply and match each of the followingexpressions.A. (x p) (x + p)B. (x 5) (x + 7)C.(x + p) (x + p)A.isz? - 2px p A.isx? p2 B.isz? + 2x 35B.isx? - 20 35 Cisx2 + 2px +p? Which phrase best completes the diagram Suppose that an increase in the price of melons from $0.50 to $1.50 per pound increases the quantity of melons that melon farmers produce from 2 million pounds to 4 million pounds. The price elasticity of supply in this case indicates that supply is Group of answer choices part 1. Use side ratios to determine if the triangles in each pair of similar. If so complete the similarity statement. NO LINKS!!! Jane's Donut Co. borrowed $198,000 on January 1, 2021, and signed a two-year note bearing interest at 11%. Interest is payable in full at maturity on January 1, 2023. In connection with this note, Jane's should report interest expense at December 31, 2021, in the amount of: Multiple Choice Which of the following are considered renewable resources?Select all that apply.A CoalB WindC SolarD Oil If you were going to break down the word micrometeoroids according to roots and affixes to improve fluency, how would it break down? a. mi-cro-met-eor-oids c. mic-rom-etor-oids b. micro-meteor-oids d. microm-et-oroids Someone help me with this pls 20 points! pls helppppp it's almost recognition day for me!!I'm sorry but i'm bad at math ;-;using the given figures, find the values of the unknown variables(PROVING ISOSCELES TRAPEZOID) The Great Compromise allowed for?A. three fifths of each slave to be counted for population purposesB. two legislatures, one with an equal number of votes for every state, and one determined by proportional representation.C. California to join the Union as a free state and a fugitive slave law to go into effect.D. states above Missouri to be free of slavery, and states below to be open to it. Which statement best describes nativist views in the late 1800s? Nativists believed that people born in the United States were better than immigrants. Nativists believed that more people should immigrate to the United States to boost the economy. Nativists believed that immigrants should adopt American culture to better assimilate. Nativists believed that immigrants should bring their own cultures to the United States. The ages of undergraduate students in a state in a particular year approximately follows a normal distribution, with a meanage of 20.6 years and a standard deviation of 1.3 years.If the total number of undergraduate students in the state is 430,000, how many students are aged 19 years or more?A)123,000B)223,000C)313,000D)383,000 Every day, Jackie practices basketball and guitar. Each day,she practices basketball for 1.5 hours. If after 6 days shepracticed both basketball and guitar for a total of 21hours, how many hours per day did Jackie practice guitar? The planet venus is on average 2.5x10^7 kilometers from earth. The planet mars is on average 2.25x10^8 kilometers from earth. What is the average distance from venus to mars?