1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Fittoniya [83]
3 years ago
12

A photon has a wavelength of 500nm what is the energy associated

Physics
1 answer:
grigory [225]3 years ago
8 0
Given: Plank's constant h = 6.626 x 10⁻³⁴ J.s   

           Speed of light c = 2.998 x 10⁸ m/s

            Wavelength  λ = 500 nm  convert to meter = 5 x 10⁻⁷ m

Required: Energy E =?

Formula: E = hc/λ

               E = (6.626 X 10⁻³⁴ J.s)(2.998 X 10⁸ m/s)/5 x 10⁻⁷ m

               E = 3.97 X 10⁻¹⁹ J  or in termS of electron volt

               E = 2.48 eV

               
You might be interested in
Reading or writing on a phone is especially dangerous while driving because:
algol [13]

Answer:

Explanation:

When we are driving we need a lot of attention and concentration. Also one involved in driving should be consious and courteous

Thus, whenever a person is drives, and when he is disactracted by Mobile phones it will destroy his presence of mind.

It will good if use mobile after stopping the vehicle

Thanks

5 0
3 years ago
Read 2 more answers
Put the following events in the order they occurred to lead to the formation of the solar system:
AfilCa [17]

Answer:

Third → First → Second → Fourth

Explanation:

Initially helium and Hydrogen in abundance started to form atoms

Following the atoms formation by hydrogen and helium bombardment of new matter into the Earth took place.

The bombardment of matter resulted in separation of Earth into respective layers based on the weight of the matter.

A primitive ocean was created as a result of off gassing of the volcanoes.

8 0
3 years ago
Create a story of a “day in the life of a water drop”. Your story should be creative and include all 6 steps in the water cycle.
pogonyaev

Answer:

Explanation:

Ok so first: the evaporation part, the sun starts to get warmer I ( the water droplet) rises up to the sky to start my evaporation cycle

Condensation: part: when I am in the air I change into a gas and then I change back into a liquid and gather my friends and make a cloud

Precipitation: as it gets to crowded, we can’t hold it anymore, when I cool down I like to sky dive with my cousins, snow, rain, sleet, hail which is called precipitation.

Then finally we land on the ground, we run down hills, and run into lakes surface runoff happens when there’s too many of us so some of us can’t be rain. Infiltration: when some of us soak into the ground cause we can’t make it into the streams and oceans. Ok I can’t help much more cause I’m super busy but if you need more help just message me and I can help thx ! Hope I helped Atleast a bit for you to understand more

5 0
3 years ago
Read 2 more answers
20.0 moles, 1840 g, of a nonvolatile solute, C 3H 8O 3 is added to a flask with an unknown amount of water and stirred. The solu
Anastasy [175]

Answer:

0.144 kg of water

Explanation:

From Raoult's law,

Mole fraction of solvent = vapor pressure of solution ÷ vapor pressure of solvent = 423 mmHg ÷ 528.8 mmHg = 0.8

Let the moles of solvent (water) be y

Moles of solute (C3H8O3) = 2 mole

Total moles of solution = moles of solvent + moles of solute = (y + 2) mol

Mole fraction of solvent = moles of solvent/total moles of solution

0.8 = y/(y + 2)

y = 0.8(y + 2)

y = 0.8y + 1.6

y - 0.8y = 1.6

0.2y = 1.6

y = 1.6/0.2 = 8

Moles of solvent (water) = 8 mol

Mass of water = moles of water × MW = 8 mol × 18 g/mol = 144 g = 144/1000 = 0.144 kg

7 0
3 years ago
A minimum temperature thermometer in a standard weather instrument shelter measures an overnight low temperature of 36 degrees F
Rudiy27

Answer:

Explanation:

Even though the minimum temperature is more than the freezing point, Frost was observed on the ground because the ground will cool rapidly as cool air tends to move towards the ground, the temperature of the ground is lower than the atmosphere a few feet above it.

As the thermometer is kept some feet above the ground so ground temperature may be lower than the minimum recorded temperature.

5 0
3 years ago
Other questions:
  • The laser pointer emits light because electrons in the material are excited (by a battery) from their ground state to an upper e
    6·1 answer
  • Match each example to its type of energy.
    6·1 answer
  • Regions around the nucleus where electrons are most likely to be found are called
    13·2 answers
  • 2. Suppose you are on an elevator accelerating upwards. You feel as if your weight has:
    6·1 answer
  • How can this system be brought to equilibrium?
    10·1 answer
  • A weight lifter raises a 1600 N barbell to a height of 2.0 meters. How much work was done? W = Fd
    13·2 answers
  • Mr. Covault gave his students an assignment to design and conduct experiments that would allow them to find the relationship bet
    7·1 answer
  • Are you gay if you are why?
    12·2 answers
  • B. The coefficient of friction between the tires and the road is 0.850 and the mass of the car is
    6·1 answer
  • An electric hoist does 56,447 J of work in raising 115 kg load. How high (in meters) was the load lifted?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!