what happens as photons of visible light are absorbed by dye molecules?

Answers

Answer 1
Certain electrons in the dye molecule move to a higher energy level, with the difference in energy between the lower and higher energy levels being the same as the energy of the absorbed photons.

Related Questions

which of the following has the most energy

Answers

the answer is blue light

Question 19 of 20
Planets A and B have the same size, mass, and direction of travel, but planet
A is traveling through space at half the speed of planet B. Which statement
correctly explains the weight you would experience on each planet?
A. You would weigh less on planet B because it is traveling twice as
fast as planet A.
B. You would weigh the same on both planets because your mass
would adjust depending on the planet's speed.
O C. You would weigh more on planet B because it is traveling twice as
fast as planet A.
D. You would weigh the same on both planets because their masses
and the distance to their centers of gravity are the same.
SUBMIT

Answers

Answer:

D. You would weigh the same on both planets because their masses

and the distance to their centers of gravity are the same.

Explanation:

The above statement is true due to the fact that, the weight and masses of the individual are same in direct comparison with the distance to their center of gravity. If the weight and masses are not same, then there would have been a significant difference between the two planet.


Describe how different energy stores are changed by the boiler.
[3 marks]

Answers

Answer:

Energy can remain in the same store for millions of years or sometimes just for a fraction of a second. There are energy transfers going on all the time - whenever a system changes there is a change in the way some or all of the energy is stored.

Transferring energy

In each of these examples, energy is transferred by one of the following four types of energy transfer:

mechanical work - a force moving an object through a distance

electrical work - charges moving due to a potential difference

heating - due to temperature difference caused electrically or by chemical reaction

radiation - energy tranferred as a wave, eg light and infrared - light radiation and infrared radiation are emitted from the sun

Doing 'work' is the scientific way of saying that energy has been transferred. For example, a grazing cow, a firing catapult and a boiling kettle are all doing 'work', as energy is being transferred.

Energy flow diagrams

Diagrams can be used to show how energy is transferred from one store to another. Two examples are the transfer diagram and the Sankey diagram.

Transfer diagrams

In transfer diagrams the boxes show the energy stores and the arrows show the energy transfers.

For example, a transfer diagram for a child at the top of a slide may be:

Energy transfer diagram of a child on a slide

Gravitational energy stored in the child at the top of the slide is transferred as mechanical work done to speed up and to do work against friction. The result of this is a shift of energy from gravitational potential energy to kinetic energy and internal energy (raising the temperature of the child and the slide).

Sankey diagrams

Sankey diagrams start off as one arrow that splits into two or more points. This shows how all of the energy in a system is transferred into different stores.

Sankey diagram of a child on a slide

Sankey diagrams are really useful when the amount of energy in each of the energy sources is known. The width of the arrow is drawn to scale to show the amount of energy.

Explanation:

   

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☻︎

ℍ ꨄ︎

So.. This is science.. I would ask the kids from my school but I have no friends and I don't know any of them.

Answers

Answer:

8 N force

Explanation:

12 N forward, 4 N backwards

12-4=8

if the battery is a 9-volt battery and the resistance in the circuit is 18 ohm's how much current is flowing through the circuit

Answers

Answer:

0.50 A

Explanation:

According to the formula, V = IR

9 = I×18

I = 9/18

I = 0.50

If the battery is a 9-volt battery and the resistance in the circuit is 18 ohm's then the current is flowing through the circuit would be 0.5 Ampere.


What is resistance?

Resistance is the obstruction of electrons in an electrically conducting material.The mathematical relation for resistance can be understood with the help of the empirical relation provided by Ohm's law.

V=IR

Where V is the voltage
Where I is the current
Where R is the resistance used in the circuit

As for the given problem  if the battery is a 9-volt battery and the resistance in the circuit is 18 ohm

By using the ohms

V=IR

By substituting the respective value of voltage and resistance
Voltage is 9 volt in the resistance is 18 ohm

9V = 18*I

I= 0.5 Ampere

Thus, the current flowing through the 9 V battery and a 18 Ohm resistor is 0.5 Ampere.

Learn more about resistance from here 

brainly.com/question/14547003

#SPJ2

AIBr+ __K__KBr + __AI

Answers

Answer:

1AlBr3+ 3K ---> 3KBr + 1Al

Explanation:

Why does an increase in temperature result in an increase in reaction rate?

Answers

Answer:

An increase in temperature typically increases the rate of reaction. An increase in temperature will raise the average kinetic energy of the reactant molecules. Therefore, a greater proportion of molecules will have the minimum energy necessary for an effective collision.

Answer:

When we increase the temperature in a chemical reaction, this increases the particles kinetic energy, making them move much faster than they were before. This also increases collision between the particles and the rate of reaction.

guys pls thi is my last pointa just answer this!!!!(WILL GIVE BRAINLY) A student takes apart a wooden box. What can they build with the materials from the box?
A) They cannot make anything with the materials.
B) They can make something new with the materials.
C) They can only make a wooden box from the materials.​​

Answers

Answer:

i guess u could pick "B" :)

Explanation:

. The naturally occurring charge on the ground on a fine day out in the open country is –1.00nC/m2 . (a) What is the electric field relative to ground at a height of 3.00 m? (b) Calculate the electric potential at this height. (c) Sketch electric field and equipotential lines for this scenario.

Answers

Answer:

a) -113 N/C

b) -423.71 V

Explanation:

The Step by step explanation and solution has been attached in the attachment section.

What are the relationships between pressure force and area?

Answers

Pressure is directly proportional to force and inversely proportional to area. Explanation: Pressure is defined as the ratio of force applied to the area of cross section.

Answer:

(b) Pressure= Area\Force

Explanation:

(a) Pressure is the force acting perpendicularly on a unit area of the object.

(b) Pressure= Area\Force

​(c) Pressure on an area of 10 m^2

Force =  200 N

Pressure = 200\10 = 20Pa

(ii) Pressure of an area 5m^2

Force =  200 N

Pressure = 200\5 = 40Pa

If helpful, please mark as brainliest! =)

can you give me an example about radiation

Answers

Explanation:

 A burning candle emits radiation in the form of heat and light. The Sun emits radiation in the form of light, heat, and particles.

Answer: The energy from the sun is one great example of radiation. The sun emits light in a broad range of wavelengths which all contain energy. These waves are also discussed in the climate section for energy balance. The waves are emitted from the sun and travel through space and hit the earth and other planets.

EXTRA EXAMPLES: heat from a stove burner.

visible light from a candle.

x-rays from an x-ray machine.

alpha particles emitted from the radioactive decay of uranium.

sound waves from your stereo.

microwaves from a microwave oven.

electromagnetic radiation from your cell phone.

one the energy level diagram what is represented by the letter
a
b
c

Answers

Answer:

see below

Explanation:

B is the activation energy

A is the enthalpy change which is negative

C is the product of oxygen and ethanol which is carbon dioxide and water

hope this helps, please mark

Which diagram shows the pattern of magnetic field lines around a bar magnet?

Answers

Answer:

d

Explanation:

What instrument is used to measure force?
1. Ruler
2. Balance
3. Spring scale
4. Barometer

Answers

Barometer duhhhh what’s else a ruler

IF you are in Space and push a bowling what happens to you and the bowling ball?

Answers

Answer:

The bowling ball did not change size or shape- the only thing that changed was the amount of gravity that pulls on it. But the mass of the bowling ball would never change. A bowling ball with a mass of 12 pounds on earth will have the mass of 12 pounds on the moon! Mass is the amount of atoms that a space fills.

Explanation:

I hope this helps! :D

If an object is placed 50 cm in front of a concave mirror of 60 cm radius, what is the image size if object size is 15cm?

Answers

Answer:

V=22.5cm

Explanation:

Heat can be transferred through conduction, convection, and radiation. What is necessary in order for heat to be transferred by conduction?
A.
Heat must be transferred through space.
B.
Heat must be transferred in the form of currents.
C.
The substances must be liquids or gases.
D.
The objects must be in direct contact with one another.

Answers

it would be..... C

sorry if I am wrong I tryed to think, At least I try!

Conduction is a mode of heat transfer where thermal energy flows between bodies that are in direct contact. Thus, the correct answer would be D.

A is incorrect here: heat flow via conduction involves high-energy particles (such as atoms or molecules) having their energy transferred to neighboring particles by contact or collision. If “space” refers to a region that contains only gas (the everyday understanding of “space”), then heat transfer by conduction would be extremely inefficient since gas molecules are so far apart. If “space” refers to a vacuum, then conduction cannot occur at all (radiation is the only mode of heat transfer through a vacuum). In either case, not only does conduction not necessitate space, but space impedes heat transfer by conduction.

B is incorrect because conduction operates via the movement of energy itself and not of matter (although, as we established above, the presence of matter is necessary for conduction). Conductive heat transfer can occur within a body itself (a metal bar that is heated on one end will eventually become hot on the other end). So, apart from being definitionally incorrect, conductive heat transfer doesn’t require currents at all. This mode of heat transfer occurs in convection.

C is manifestly incorrect: conductive heat transfer can occur between or within solids, so it can’t possibly be necessary that the “substances . . . Be liquids or gases.

In what way could a random mutation provide an organism with
an advantage?

Answers

Answer:

They are called beneficial mutations. They lead to new versions of proteins that help organisms adapt to changes in their environment. Beneficial mutations are essential for evolution to occur. They increase an organism's changes of surviving or reproducing, so they are likely to become more common over time.

Explanation:

why do you think people translate sound waves from compression waves to transverse waves ?

Answers

Answer:

Sound waves are translated into transverse waves to know the frequency, amplitude, wavelength etc of the waves.

Explanation:

They translate the sound waves to know the depth about that specific waves and translating it to transverse waves makes it easier.

Hope it helps :D

I WILL GIVE BRAINLIST TO CORRECT ANSWERSSSS
Examine the symbols below:

Four schematics are shown. Each symbol shows a cell schematic with the plus and minus symbols. Symbol A has the pattern: long, short, long, and short lines. Symbol B has the pattern: long, short, long, short, long, and short lines. Symbol C has the pattern: long and short lines. Symbol D has the pattern: long, short, long, and short but rotated horizontally.

Which image represents a three-battery cell in a circuit? (2 points)

Group of answer choices

Symbol A

Symbol B

Symbol C

Symbol D

Answers

Answer:

The answer is SYMBOL B.

Explanation:

The correct schematic is the one that shows three groups of long and short lines. A schematic with one long and one short (one group) would be a one cell; a schematic with a long, a short, a long, a short (two group), would be a two cell; and a schematic with a long, a short, a long, a short, a long and a short (three group), would be a three cell- hence why the answer is symbol B.

Answer:

Symbol B

Explanation:

I took the test :)

Does the mass of the objects you are charging influence the amount of electric force created in an electric field?

Answers

Explanation:

Both gravitational and electric forces decrease with the square of the distance between the objects, and both forces act along a line between them. In Coulomb's law, however, the magnitude and sign of the electric force are determined by the electric charge, rather than the mass, of an object.

Can a physical quantity have units but still be dimensionless?

Answers

Answer:

yes

Explanation:

there are other quantities that are dimensionless, but have a unit.

For example, radian is the unit for an angle. But it is dimensionless because it is defined to be the ratio of two lengths.,

a dimensionless quantity will always be independent of the base units — meter, second, kilograms, kelvin, candela, moles, ampere.

Other examples:

1. Mass fraction

2.Mole fraction

both have unit (kg/kg)

Answer:

A quantity that has dimensions must have units. Yes a quantity have units but still be dimensionless for example,unit of angle is radian ,but it is a dimensionless quantity. A dimensionless quantity may have unit. ... A unitless quantity never has a non-zero dimension.

I hope it's helpful!

When a 40V battery is connected across an unknown resistor there is a current of 100 ma  in the circuit.

Find the value of the resistance of the resister:​

Answers

Answer:

R = 400 ohms.

Explanation: Voltage of the battery, V = 40 V. Current in the unknown resistor I = 100mA. Let R is the resistance of the resistor. It can be calculated using Ohm's law it gives the relationship between the voltage, resistance and current.. R = V/I. R = 40 V/10-¹A. R = 400 Ohm's. So, the value of the resistance of the resistor is 400 Ohm's

400 ohms because 4 times 100

Which one of the following best describes a fuse?

Answers

A material that allows current to travel through a circuit

Need help as fast as possible please
Thank you!

Answers

Answer:

b is the answer.. hope it helps

the answer to this is B

Impulse equals?
A) momentum x velocity
B) momentum x time
C) mass x velocity

Answers

Answer:

B

Explanation:

The impulse experienced by an object is the force•time.

mass x velocity is the answer i think

At 10°C, the gas in a cylinder has a volume of 0.250 L. The gas is allowed to expand to 0.285 L.


What must the final temperature be for the pressure to remain constant? (Hint °C + 273 = K.)


282 K


284 K


323 K


248 K

Answers

Explanation :Use the formula: P1V1T1=P2V2T2
We know that we want P1=P2 so the pressure will remain constant, so we can say that: P1V1T1=P1V2T2
Plug in the values we know: P1⋅0.250L283K=P1⋅0.285LT2
(Remember that temperature must be done in Kelvin.)
Cross multiply: T2⋅P1⋅0.250L=283K⋅P1⋅0.285L
Divide both sides by P1.
T2⋅0.250L=283K⋅0.285L
T2=283K⋅0.285L0.250L
T2=323K
(This is also 50˚C.)

(Answer is 323k)

Can anybody answer this question. Please...

Answers

Yes they acquire both poles. Each side facing each other should be opposites
So A is N
C is S
D is N
B is S

Which vector has a y-component with a length of 3?
A. C
B. d
C. a
D. b

Answers

Answer:

Option C : a

Explanation:

1. What happens when like magnetic poles are brought close together?​

Answers

Answer:

They repel from each other

Explanation:

Answer:

It is also observed that, magnets attract as well as repel. We can explain this dual nature of magnetic force by proposing that each magnet has two poles, north pole (N) and south pole (S). You will observe two things during the activities:

1) When two magnets are brought near each other, like poles repel; opposite poles attract.

2) When a magnet is brought near a piece of iron, the iron also gets attracted to the magnet, and it acquires the same ability to attract other pieces of iron.

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