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
puteri [66]
3 years ago
12

Consider a collection of charges in a given region and suppose all other charges are distant and have a negligible effect. Furth

er, the electric potential is taken to be zero at infinity. If the electric potential at a given point in the region is zero, which of the following statements must be true?
A. The electric field is zero at that point.
B. The charges have the same sign and are symmetrically arranged around the given point.
C. The electric potential energy is a minimum at that point.
D. There is no net charge in the region.
E. Some charges in the region are positive, and some are negative.
Physics
1 answer:
AlladinOne [14]3 years ago
3 0

Answer:

E. Some charges in the region are positive, and some are negative.

Explanation:

Electric potential is given as;

V = \frac{W}{Q}

where;

W is the work done in moving a charge between two points which have a difference in potential

Q is quantity of charge in the given region

If the electric potential at a given point in the region is zero, then sum of the charges in the given region must be equal to zero. For the charges to sum to zero, some will be positive while some will be negative,.

Therefore, the correct statement in the given options is "E"

E. Some charges in the region are positive, and some are negative.

You might be interested in
Which of the following is a star that has begun to run out of fuel? A) Neutron star B) Red giant C) Stellar nebula D) White dwar
Readme [11.4K]
The answer is B.Red Giant

Red Giants are stars which already in a late stage of evolution. These stars no longer have enough hydrogen to fuel it's nuclear fusion

hope this helps

7 0
3 years ago
Which explanation BEST supports Newton's second law of motion which states that force = mass x acceleration?
GaryK [48]
The answer is C. F=ma basically says that force is a function of mass multiplied by acceleration. The first two answers don’t make sense because there’s no necessary relationship between mass and acceleration. And for the last two, the higher the mass, the higher the force needed, therefore C is the correct answer.
8 0
2 years ago
From an electromagnetic wave the electric and magnetic field is what direction toward each other?
liubo4ka [24]
What are the choices?
3 0
3 years ago
An artificial satellite is moving in a circular orbit of radius 24,600 km. Calculate its speed if it takes 12hours to revolve ar
denis-greek [22]

Answer:

the speed of the satellite is 12,880.53 km/h

Explanation:

Given;

radius of the circular orbit, r = 24,600 km

time taken to revolve around Earth, t = 12 hours

The circumference of the satellite is calculated as;

L = 2πr

L = 2π x 24,600 km

L = 49,200π km

L = 154,566.36 km

The speed of the satellite;

v = L/t

v = 154,566.36 / 12

v = 12,880.53 km/h

Therefore, the speed of the satellite is 12,880.53 km/h

6 0
3 years ago
Can someone help me on how to do this?
Galina-37 [17]

Explanation:

Recall that

1\:\text{micron} = 1\:\mu\text{m} = 10^{-6}\:\text{m} so the speed of the bacterium is

v = \dfrac{6.82×10^{-6}\:\text{m}}{3.5\:\text{s}} = 1.9×10^{-6}\:\text{m/s}

Next, we convert this speed to km/hr. Recall that

1\:\text{km} = 1000\:\text{m}

1\:\text{hr} = 60\:\text{minutes} = 3600\:\text{s}

Therefore,

1.9×10^{-6}\:\dfrac{\text{m}}{\text{s}}×\left(\dfrac{1\:\text{km}}{1000\:\text{m}}\right)×\left(\dfrac{3600\:\text{s}}{1\:\text{hr}}\right)

= 6.8×10^{-6}\:\text{km/hr}

8 0
3 years ago
Other questions:
  • Jerome places a bag of flour on a scale. The scale shows that the bag has a weight of 17 N. Which is the reaction force of the b
    10·1 answer
  • What's the answer ? Please Help
    15·1 answer
  • Why can't passenger planes fly very high?
    13·2 answers
  • Why do smaller endotherms require more energy per unit of mass than larger endotherms?
    12·1 answer
  • If the temperature is held constant during this process and the final pressure is 683 torrtorr , what is the volume of the bulb
    15·1 answer
  • Summarize: Based on what you have learned, how will the sound that the observer hears
    10·1 answer
  • An object pulled to the right by two forces has an acceleration of 2.5m/s2. The free-body diagram shows the forces acting on the
    14·1 answer
  • What can electromagnetic waves travel through?
    15·1 answer
  • Select all the correct answers.
    10·2 answers
  • eight points are in/on the circle of radius 10cm. show that distance between some two points is less than 1cm.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!