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
lawyer [7]
1 year ago
6

*example of previous incorrect/correct answer on similar question) Inside a vacuum tube, an electron is in the presence of a uni

form electric field with a magnitude of 330 N/C.
(a) What is the magnitude of the acceleration of the electron (in m/s²)?
__________m/s²

(b) The electron is initially at rest. What is its speed (in m/s) after 8.00 ✕ 10−⁹ s?
______m/s

Physics
1 answer:
andrezito [222]1 year ago
8 0

The final speed of the electron is 4.64 * 10^5 m/s.

<h3>What is the speed of the electron?</h3>

Given that the mass of the electron is obtained as 9.11 * 10^-31 Kg, we have that the charge of the electron is 1.6 * 10^-19 C.

E= F/q

F = Eq

F =  330 N/C * 1.6 * 10^-19 C

F = 5.28 * 10^-17 N

F = ma

a = F/m = 5.28 * 10^-17 N/ 9.11 * 10^-31 Kg

a = 5.8 * 10^13 m/s^2

Using

v = u + at

u = 0 m/s because the electron was initially at rest

v = at

v = 5.8 * 10^13 * 8.00 ✕ 10−⁹ s

v = 4.64 * 10^5 m/s

Learn more about the speed of the electron:brainly.com/question/13130380

#SPJ1

You might be interested in
Which group of elements are shiny, opaque, and have a high melting point?
vlabodo [156]
The answer is A. Metals
3 0
3 years ago
16)
VMariaS [17]

Answer:

a.proton, proton

hope this helped :) have a goodday

6 0
3 years ago
A 1-kg iron frying pan is placed on a stove. The pan increases from 20°C to 250°C. If the same amount of heat is added to a pan
sergejj [24]

Here mass of the iron pan is given as 1 kg

now let say its specific heat capacity is given as "s"

also its temperature rise is given from 20 degree C to 250 degree C

so heat required to change its temperature will be given as

Q = ms \Delta T

Q = 1*s*(250 - 20)

Q = 1*s*230

now if we give same amount of heat to another pan of greater specific heat

so let say the specific heat of another pan is s'

now the increase in temperature of another pan will be given as

Q = ms'\Delta T

1*s*230 = 1* s' * \Delta T

now we have

\Delta T = (\frac{s}{s'})*230

now as we know that s' is more than s so the ratio of s and s' will be less than 1

And hence here we can say that change in temperature of second pan will be less than 230 degree C which shows that final temperature of second pan will reach to lower temperature

So correct answer is

<u>A) The second pan would reach a lower temperature.</u>

3 0
2 years ago
Read 2 more answers
Look at the Grand Canyon cross section. What is the 4th event to take place in the Grand Canyon's geologic history?
mart [117]

Answer:

bass limestone

Explanation:

if I'm right bass limestone is the fourth one because 3 are under it

8 0
2 years ago
What is the density of an object that has a mass of 30 g and a volume of 20cm cubed/ to the third power?
Ksenya-84 [330]

Answer:

d= 1.5 g/cm3

Explanation:

datos

m= 30g

v= 20cm3

d=?

formula

d= m / v

solución

d= 30g / 20cm3 = 1.5g/cm3

6 0
2 years ago
Other questions:
  • Which of the following occurs as light travels farther from its source?
    5·1 answer
  • In attempting to pull a 1500 kg car out of a ditch, Al exerts a force of 200 N for 5 s, Bill exerts a force of 500 N for two s,
    8·1 answer
  • Calculate the amount of energy produced in joules by 100- watt light bulb lit for 2.5 hours.
    9·1 answer
  • If the copper is drawn into wire whose diameter is 6.50 mm, how many feet of copper can be obtained from the ingot? the density
    11·1 answer
  • This term ____ Location refers to using another location as a reference point, rather than using latitude and longitude.
    9·1 answer
  • A physics student drops a rock from a 55m cliff. How long does it take to hit the ground?
    12·2 answers
  • People living at Earth’s equator are traveling at a constant speed of about 1,670 km/h as Earth spins on its axis. What are thes
    10·1 answer
  • When a rock is held above the ground, we say it has some potential energy. When we let it go, it falls and we say the potential
    14·1 answer
  • Two large, parallel, nonconducting sheets of positive charge face each other. What is at points (a) to the left of the sheets, (
    5·1 answer
  • Which image shows a non renewable resources?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!