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
zalisa [80]
3 years ago
6

Assuming that the smallest measurable wavelength in an experiment is 0.610 fm (femtometers), what is the maximum mass of an obje

ct traveling at 199 m·s–1 for which the de Broglie wavelength is observable?.

Physics
2 answers:
frosja888 [35]3 years ago
7 0
<span>1 fm = 1.0 × 10-15 meters 
</span>so
0.610<span>  fm x (1.0x10^-15 m / 1 fm)
                   = 6.1x10^-16 m</span>
so the formula is
λ = h / mu 
so,
as we know mass value so by putting
<span>m = (6.626*10^-34)/(6.1*10^-16*199)
    =</span>(6.626*10^-34)/(1213.96*<span>10^-16)
</span>    = 5.45 x 10^ -21

KonstantinChe [14]3 years ago
7 0

The maximum mass of the object is about 5.46 × 10⁻²¹ kg

\texttt{ }

<h3>Further explanation</h3>

The term of package of electromagnetic wave radiation energy was first introduced by Max Planck. He termed it with photons with the magnitude is:

\large {\boxed {E = h \times f}}

<em>E = Energi of A Photon ( Joule )</em>

<em>h = Planck's Constant ( 6.63 × 10⁻³⁴ Js )</em>

<em>f = Frequency of Eletromagnetic Wave ( Hz )</em>

\texttt{ }

The photoelectric effect is an effect in which electrons are released from the metal surface when illuminated by electromagnetic waves with large enough of radiation energy.

\large {\boxed {E = \frac{1}{2}mv^2 + \Phi}}

\large {\boxed {E = qV + \Phi}}

<em>E = Energi of A Photon ( Joule )</em>

<em>m = Mass of an Electron ( kg )</em>

<em>v = Electron Release Speed ( m/s )</em>

<em>Ф = Work Function of Metal ( Joule )</em>

<em>q = Charge of an Electron ( Coulomb )</em>

<em>V = Stopping Potential ( Volt )</em>

Let us now tackle the problem!

\texttt{ }

This problem is about De Broglie's wavelength.

<u>Given:</u>

speed of object = v = 199 m/s

wavelength = λ  = 0.610 fm = 6.1 × 10⁻¹⁶ m

Planck's constant = h = 6.63 × 10⁻³⁴ Js

<u>Asked:</u>

mass of the object = m = ?

<u>Solution:</u>

\lambda = \frac{h}{mv}

6.1 \times 10^{-16} = \frac{6.63 \times 10^{-34}}{m \times 199}

\large {\boxed {m \approx 5.46 \times 10^{-21} \texttt{ kg}} }

\texttt{ }

<h3>Learn more</h3>
  • Photoelectric Effect : brainly.com/question/1408276
  • Statements about the Photoelectric Effect : brainly.com/question/9260704
  • Rutherford model and Photoelecric Effect : brainly.com/question/1458544
  • Photoelectric Threshold Wavelength : brainly.com/question/10015690

\texttt{ }

<h3>Answer details</h3>

Grade: High School

Subject: Physics

Chapter: Quantum Physics

You might be interested in
What force is keeping the Earth in orbit around the Sun? * HELP FAST PLEASE.
sveta [45]

Answer:

magnetic force due to gravity

Explanation:

nowno that is because that's what the geography teacher taught us back in don't remember but it's true

6 0
2 years ago
A bus travelling 30.0 km/h east has a constant increase in speed of 1.5 m/s. What is its velocity 6.8s later
alekssr [168]

Answer:

8.72 seconds before

Explanation:

and 27.1 secs after

7 0
3 years ago
an electrically charged particle with mass m, velocity v, and charge q moves in a circle in magnetic field b. what is the formul
kolbaska11 [484]

Answer:

r=\frac {mv}{qb}

Explanation:

In this case,  since the charged particle moves in circular motion,  the centripetal force is equivalent to the magnetic force.

\frac {mv^{2}}{r}=qvb\\\frac {mv}{r}=qb\\r=\frac {mv}{qb}

5 0
3 years ago
What is the kinetic energy of a 200 kg satellite as it follows a circular orbit of radius 8x106m around the earth?
motikmotik
Given the equation for the Speed of a Satellite

v = SqRt{Gravitational Constant}{Mass of Earth} divided by the radius given in your problem

we have:


(square root whole term on right side)

v = G Me
———
r


so. (6.67x10^-11)(5.97x10^24)
___________________
(8.0x10^6)


v = 7055 m/s (which is reasonable)


so utilize the Kinetic Energy Formula


KE = 1/2mv^2


KE = 1/2(200)(7055)^2


KE = 4.977x10^9 J


4 0
3 years ago
Read 2 more answers
PLEASEEEE HELP :( it would mean a lot
Elis [28]

Answer:

Each object exerts a force on the other, and the two forces are equal and in opposite directions

Explanation:

Newton's 3rd Law Of Motion:

For every action, there is an equal and opposite reaction.

5 0
3 years ago
Read 2 more answers
Other questions:
  • A baby stroller is a rest on top of a hill which is 10 m high. The stroller and baby have a mass of 20 kg. What is the potential
    11·2 answers
  • after swimming away from captain terror randy enters a 16 yard downhill couch race. how many feet is the race
    14·1 answer
  • Are you doing work holding a heavy piece of furniture in place
    13·1 answer
  • Why does the moon appear to wax grow larger and then wane or get smaller
    11·1 answer
  • Why do the giant planets and their moons have compositions different from those of the terrestrial planets?
    6·1 answer
  • A ball thrown horizontall at 22.2 m/s from the roof of a building lands 36.0m from the base of the building. How tall is the bui
    12·1 answer
  • A box of mass 3 kg is lifted 1.5 m onto a shelf. Calculate the change in its gravitational potential energy. The gravitational f
    10·2 answers
  • How can a wind turbine be used to make an electric circuit?
    10·1 answer
  • Help plssssss would be highly appreciate ❤️❤️
    12·2 answers
  • How many significant digits are there in 11.090 mL?<br> a. 5<br> b. 3<br> C. 1<br> d. 2
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!