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
amid [387]
3 years ago
15

An electron with a speed of 1.2 × 107 m/s moves horizontally into a region where a constant vertical force of 5.2 × 10-16 N acts

on it. The mass of the electron is 9.11 × 10-31 kg. Determine the vertical distance the electron is deflected during the time it has moved 19 mm horizontally.
Physics
2 answers:
anygoal [31]3 years ago
8 0

Answer:

0.85mm

Explanation:

It is given that,

Speed of the electron in horizontal region, v=1.2\times 10^7\ m/s

Vertical force, F_y=5.2\times 10^{-16}\ N

Vertical acceleration, a_y=\dfrac{F_y}{m}

a_y=\dfrac{5.2\times 10^{-16}\ N}{9.11\times 10^{-31}\ kg}  \\a_y=5.708\times 10^{14}\ m/s^2..........(1)

Let t is the time taken by the electron, such that,

t=\dfrac{x}{v_x}\\t=\dfrac{19\times 10^-^3 \ m}{1.1\times 10^7\ m/s}\\t=1.727\times 10^{-9}\ s...........(2)

Let d_y is the vertical distance deflected during this time. It can be calculated using second equation of motion:

d_y=ut+\dfrac{1}{2}a_yt^2

u = 0

d_y=\dfrac{1}{2}\times 5.708\times 10^{14}\ m/s^2\times (1.727\times 10^{-9}\ s)^2

d_y=0.0008512\ m\\d_y=0.85\ mm

Aliun [14]3 years ago
7 0

Answer: 0.642mm

Explanation: F= force = 5.2×10^-16 N,

v = velocity of electron = 1.2×10^7 m/s,

m = mass of electron = 9.11×10^-31 kg.

We will assume the motion of the object to be of a constant acceleration, hence newton's laws of motion is applicable.

Recall that f = ma.

Where a = acceleration

This acceleration of vertical because it occurred when the object deflected.

5.2×10^-16 = 9.11×10^-31 (ay)

ay = 5.2×10^-16 / 9.11×10^-31

ay = 5.71×10^14 m/s²

For the horizontal motion, x = vt

Where x = horizontal distance = 0.019m and v is the velocity = 1.2×10^7 m/s,

By substituting the parameters, we have that

0.019 = 1.27×10^7 × t

t = 0.019 / 1.27 × 10^7

t = 1.5×10^-9 s

The vertical distance (y) is gotten by using the formulae below

y = ut + at²/2

but u = 0

y = at²/2

y = 5.71×10^14 × (1.5×10^-9)²/2

y = 0.00128475/2

y = 0.000642m = 0.642mm

You might be interested in
What force is the total force felt by an object?
skelet666 [1.2K]

Answer:

net force

Explanation:

Net force felt by an object.

6 0
3 years ago
Read 2 more answers
. A student thinks that the more protons an atom has, the more reactive it will be. Which will best disprove this student's idea
shepuryov [24]
The best answer to the question that is being stated above would be the first choice. To disprove the claims of the student that you need more protons to have more reactivity, then you proceed to compare the reactivities of lithium (Li) and krypton (Kr). Krypton has more protons than Lithium, but it is less reactive because it is a noble gas.
6 0
3 years ago
What is the us specification for ac power?
USPshnik [31]
120 volts for most home a phone charger can convert 120 volts ac to 5 volts dc
3 0
3 years ago
I really don’t know the answer for this
EleoNora [17]
The correct answer is the reverse wave I took the test
6 0
3 years ago
Which of the following is an exercise myth?
Margaret [11]
The answere is No pain, no gain
8 0
3 years ago
Read 2 more answers
Other questions:
  • The circuit element whose purpose is to convert electrical energy into another form of energy is the _____.
    15·1 answer
  • How does making models help scientists observe?
    13·2 answers
  • Light of wavelength 610 nm falls on a slit that is 3.50×10^−3 mm wide. How far the first bright diffraction fringe is from the s
    11·1 answer
  • Running longer would be an example of how you might improve your running performance
    14·1 answer
  • In the Earth's mantle, heat is transferred in large convection currents. Within these currents,
    7·2 answers
  • A 2-kW resistance heater in a water heater runs for 3 hours to raise the water temperature to the desired level. Determine the a
    9·1 answer
  • PLEASE HELP
    7·2 answers
  • suppose you want to determine the surface area of this sugar cube. it has edges that are each 2 cm long. if you cut the cube in
    5·1 answer
  • A person slides a box down a ramp. The box starts from rest 2m above the lowest point. The ramp is frictionless. Once the box re
    8·1 answer
  • Type the correct answer in the box. What’s the velocity of the balloon? Use . A hot-air balloon with a mass of 400 kilograms mov
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!