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
Setler79 [48]
3 years ago
8

If electromagnetic radiation has a frequency of 2.0×1015s−1, what is the radiation’s energy?(1 point)

Chemistry
1 answer:
Alika [10]3 years ago
7 0
  • Frequency=v=2×10^15Hz
  • Energy=E

Using planks quantum theory

\\ \sf\longmapsto E=hv

\\ \sf\longmapsto E=6.626\times 10^{-34}Js\times 2\times 10^{15}s^{-1}

\\ \sf\longmapsto E=13.252\times 10^{-19}J

\\ \sf\longmapsto E=1.3\times 10^{-18}J

You might be interested in
Ethan is investigating a snails response to stimuli. He put the following substances on each corner of a paper towel; syrup,lemo
olga nikolaevna [1]
There doesn't seem to be a clear answer, it is placed in the center when it's substances is on the corners it doesn't give anything else
4 0
3 years ago
Read 2 more answers
Fill in the blanks (Balancing chemical reactions)<br>BRAINLIEST
Artemon [7]

\huge{ \mathfrak{  \underline{ Answer \:  \:  ✓ }}}

The 2 in front of Na in 2Na + Cl_2 \rightarrow  2NaCl is <u>Coefficient.</u>

_____________________________

The _2 after Cl_2 in the same equation is <u>sub </u><u>script</u><u>.</u>

_____________________________

There are two atoms of Na in 2NaCl

_____________________________

\mathrm{ \#TeeNForeveR}

7 0
3 years ago
What is the concentration of h+ ions in a 2.20 m solution of hno3?
kvv77 [185]

The question is improperly formatted.

What is the concentration of H+ ions in a 2.2 M solution of HNO3.

Answer:-

2.2 moles of H+ per litre

Explanation:-

M stands for molarity. 2.2 M means 2.2 moles of HNO3 is present per litre of the solution.

Now HNO3 has just 1 H in it's formula. HNO3 would give H+. So 2.2 moles of HNO3 would mean 2.2 moles of H+ per litre.

7 0
3 years ago
1. A 2-kg bowling ball sits on top of a building that is 40 meters tall. (5 pts) Circle one: KE / GPE / both ( can you show work
masha68 [24]
Potential energy is energy due to an object's height above the ground.
Potential energy = mass x gravity x height
Kinetic energy is energy due to the motion of the object.
Kinetic energy = 1/2 x mass x velocity²

1.
The ball is not moving and is at a height above the ground so it has only potential energy.
P.E = 2 x 9.81 x 40
P.E = 784.8 J

2.
The ball is moving and has a height above the Earth's surface so it has both kinetic and potential energy.
P.E = same as part 1 = 784.8 J
K.E = 1/2 x 2 x 5²
K.E = 25 J

3.
The ball has no height above the Earth's surface and is moving so it has only kinetic energy.
K.E = 1/2 x 2 x 10²
K.E = 100 J

4.
50000 = 1/2 x 1000 x v²
v = 10 m/s

5.
39200 = 200 x 9.81 x h
h = 20.0 m

6.
12.5 = 1/2 x 1 x v²
v = 5 m/s
98 = 1 x 9.81 x h
h = 10.0 m
3 0
3 years ago
__________ is an important factor in the process of maturation because it provides a biological framework of how much one is cap
Anon25 [30]
It is definitely not A. B is an effect. I would say C because D is more of a conservative answer , C is more of a liberal answer, and we currently live in a liberally swayed world. They are probably looking for C. It is not in your nature to be bad.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Why do we use anhydrous diethyl ether? Choose the right answer.
    11·1 answer
  • What is the mass of 1 centimeter cubes of gold
    6·1 answer
  • PLEASE HELP ME WITH THE QUESTION IN THE IMAGE AND I WILL MARK AS BRAINLIEST IF CORRECT
    15·1 answer
  • Use the titration results to calculate the moles of h2so4
    8·1 answer
  • 2 Nobr +heat &gt; 2 no2+br2 what happens when you remove nobr
    13·1 answer
  • Jerome and a classmate are conducting an experiment. Which piece of safety equipment is least likely to be at Jerome’s lab stati
    10·2 answers
  • Which statement below correctly describes the relationship between Q and K for both reactions? Are these reactions spontaneous a
    5·1 answer
  • During an experiment, distilled water was placed in a sealed container and the container was heated gradually. Describe this sys
    11·1 answer
  • What features does the phone of the future have? List at least 3 features.
    6·1 answer
  • 2. When iron rusts what is it reacting with?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!