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
adell [148]
2 years ago
13

What potential increase vac must an electron be accelerated through if the most energetic photon it can emit will scatter off of

a stationary electron at an angle ϕ=60∘ with wavelength 8.4×10−12m?express your answer in kilovolts to two significant digits?
Physics
1 answer:
nikitadnepr [17]2 years ago
7 0
Referring to Compton scattering 
Δλ = h/m₀c (I- cos Ф)
λ' =λ = (0,0242×10⁻¹⁰) (1- cos 60°)
λ= λ' -(0.0242 × 10⁻¹⁰) (1- cos 60°)

7.19 ˣ 10⁻¹²m

The increased potential is given by 
Vₐc = hc/eλ = 6.625 × 10 ⁻³⁴ J,s) ( 3× 10⁸ m/s ( 1.6 ˣ 10 ⁻¹⁰C)
(7.19 ˣ 10⁻¹²m)

173kV.
You might be interested in
Which unit of a measurement is better for determining the volume for a drop of water. A milliliter, or a liter?
IceJOKER [234]
A milliliter, because it is a smaller unit of measurement more fitting for a drop of water.
6 0
3 years ago
Which should be done in case of a laboratory accident?
stich3 [128]
Tell your instructor or teacher
4 0
2 years ago
Cars A and B are racing each other along the same straight road in the following manner: Car A has a head start and is a distanc
4vir4ik [10]

The question is incomplete. Here is the complete question.

Cars A nad B are racing each other along the same straight road in the following manner: Car A has a head start and is a distance D_{A} beyond the starting line at t = 0. The starting line is at x = 0. Car A travels at a constant speed v_{A}. Car B starts at the starting line but has a better engine than Car A and thus Car B travels at a constant speed v_{B}, which is greater than v_{A}.

Part A: How long after Car B started the race will Car B catch up with Car A? Express the time in terms of given quantities.

Part B: How far from Car B's starting line will the cars be when Car B passes Car A? Express your answer in terms of known quantities.

Answer: Part A: t=\frac{D_{A}}{v_{B}-v_{A}}

              Part B: x_{B}=\frac{v_{B}D_{A}}{v_{B}-v_{A}}

Explanation: First, let's write an equation of motion for each car.

Both cars travels with constant speed. So, they are an uniform rectilinear motion and its position equation is of the form:

x=x_{0}+vt

where

x_{0} is initial position

v is velocity

t is time

Car A started the race at a distance. So at t = 0, initial position is D_{A}.

The equation will be:

x_{A}=D_{A}+v_{A}t

Car B started at the starting line. So, its equation is

x_{B}=v_{B}t

Part A: When they meet, both car are at "the same position":

D_{A}+v_{A}t=v_{B}t

v_{B}t-v_{A}t=D_{A}

t(v_{B}-v_{A})=D_{A}

t=\frac{D_{A}}{v_{B}-v_{A}}

Car B meet with Car A after t=\frac{D_{A}}{v_{B}-v_{A}} units of time.

Part B: With the meeting time, we can determine the position they will be:

x_{B}=v_{B}(\frac{D_{A}}{v_{B}-v_{A}} )

x_{B}=\frac{v_{B}D_{A}}{v_{B}-v_{A}}

Since Car B started at the starting line, the distance Car B will be when it passes Car A is x_{B}=\frac{v_{B}D_{A}}{v_{B}-v_{A}} units of distance.

5 0
3 years ago
Please answer :&gt;<br> 40 POINTS
LenaWriter [7]

Answer:

rotates

Explanation:

I'm so bored

yrfgggghhgghhyuj

8 0
3 years ago
Read 2 more answers
When you enter a toll road, your ticket is stamped 1:00 p.m. When you leave, after traveling 55 miles, your ticket is stamped 2:
Viefleur [7K]
27.5 because of you divide the 55miles with the time you get your velocity which is the speed.
4 0
3 years ago
Read 2 more answers
Other questions:
  • A cell phone weighing 80 grams is flying through the air at 15 m/s. What’s is it’s kinetic energy
    5·1 answer
  • An empty truck and a fully loaded truck are next to each other at the traffic light. When the light turns green the lighter truc
    15·1 answer
  • Give a physical description of radio waves and compare and contrast it with the frequency, wavelength, energy and wave speed wit
    6·1 answer
  • Which type of friction keeps a mound of rocks from falling away from each other
    6·2 answers
  • By what factor does the sound intensity increase if the sound intensity level increases from 60 db to 61 db?
    6·1 answer
  • Helpppppppppp pppppplzzzzzzzzzzzzzzzzzzzzzzzzz
    7·2 answers
  • 6. The slope of a speed-time linear graph is
    14·1 answer
  • Look at the two vectors below:
    7·1 answer
  • Using the periodic table, predict the formulas of stable ionic compounds. Select THREE that are correct.
    13·2 answers
  • A 60.-kilogram physics student would weigh 1560
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!