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
FinnZ [79.3K]
3 years ago
7

If the potential due to a point charge is 5.15 ✕ 102 V at a distance of 14.8 m, what are the sign and magnitude of the charge? (

Enter your answer in C.)
Physics
1 answer:
olchik [2.2K]3 years ago
6 0

Answer:

q = 8.47×10⁻⁷ C.

Explanation:

From Coulomb's,

V = kq/r..................... Equation 1

Where, V = Electric potential, q = charge, r = distance, k = proportionality constant.

Make q the subject of the equation

q = Vr/k..................... Equation 2

Given: V = 5.15×10² V, r = 14.8 m

Constant: k = 9.0×10⁹ Nm²/C²

Substitute into equation 2

q = 5.15×10²×14.8/9.0×10⁹

q = 8.47×10⁻⁷ C.

You might be interested in
A train is moving in the positive direction down a track. First the train speeds up, and then it slows down. What is its acceler
tatuchka [14]
C.

The train first sped up, giving it a positive acceleration in the beginning. This eliminates D since that choice states that it begins with a negative acceleration. This also eliminates B since that choice states that the train only had a negation acceleration.

Next, the train slows down, giving it a negative acceleration. We’re looking for the answer choice that starts with a positive acceleration and ends with a negative one. This makes C the correct answer. Hope this helps!
8 0
3 years ago
Read 2 more answers
Needed substance are carried to the body cells by ehat
agasfer [191]
Oh my gosh had the same question
3 0
3 years ago
Please Help Me!!!........​
vesna_86 [32]

Answer:

1.Siddartha Gautama

2.no single founder

3jesus christ

4.muhammad

5.abraham

7 0
3 years ago
What is mass and on which factor does it depend​
larisa [96]
Mass is a measure of how much force it will take to change that path. Mass depends on how much matter – atoms and so on – there is in an object; more mass means more inertia, as there is more to get moving. (This is Isaac Newton's idea of mass, which underpins his famous laws of motion developed in the late 1600s
5 0
3 years ago
What’s the dependent variable?
Nikolay [14]

Answer: number of bacteria

Explanation:

A easier way. I like to remember it is that x axis = independent and yaxis = dependent variable, but if that doesn’t help think about this

Why would the number of bacteria effect the amount of time. It doesn’t make sense because time goes on forever and nothing can change about it but time can change the number of bacteria because if you had a timer of 30 seconds and the bacteria is for example 10 and if you had a timer of one minute then the number of bacteria change because of time, if you flip it, it doesn’t make sense

3 0
3 years ago
Other questions:
  • Match the followings.
    12·1 answer
  • A 35-gram stainless steel ball on a track is moving at a velocity of 9 m/s. On the same track, a 75-gram stainless steel ball is
    5·2 answers
  • A car has an acceleration of -5 m/s^2. Describe the car’s motion
    13·1 answer
  • A 210 Ω resistor is connected to an AC source with E0 = 14.0 V. part a
    11·1 answer
  • What is the tendency of two masses alone in the universe to drift together a result of?
    12·1 answer
  • A plane mirror and a concave mirror (f = 8.40cm) are facing each other and are separated by a distance of 22.0 cm. An object is
    9·1 answer
  • A banked circular highway curve is designed for traffic moving at 58 km/h. The radius of the curve is 201 m. Traffic is moving a
    12·1 answer
  • What is the escape speed on a spherical asteroid whose radius is 517 km and whose gravitational acceleration at the surface is 0
    8·1 answer
  • Please answer the question asked in the image.
    9·1 answer
  • Someone help me like please thank you
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!