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
notka56 [123]
3 years ago
6

A conducting sphere contains positive charge distributed uniformly over its surface. Which statements about the potential due to

this sphere are true?
A) The potential at the center of the sphere is zero.
B) The potential is lowest, but not zero, at the center of the sphere.
C) The potential at the center of the sphere is the same as the potential at the surface.
D) The potential at the center is the same as the potential at infinity.
E) The potential at the surface is higher than the potential at the center.
Physics
1 answer:
user100 [1]3 years ago
5 0
The correct answer is C. The potential at the center of the sphere is the same as
the potential at the surface
You might be interested in
If the refractive index of water is 1.33, then its critical angle is...
natulia [17]
I c
​ =48 ∘45 1
. Fkfkkvkv
7 0
3 years ago
A 97 kg man lying on a surface of negligible friction shoves a 62 g stone away from himself, giving it a speed of 2.6 m/s. What
tangare [24]

Answer:

man will move in opposite direction with speed

v_1 = 1.66 \times 10^{-3} m/s

Explanation:

As we know that man is lying on the friction-less surface

so here net force along the surface is zero

so if we take man + stone as a system then net change in momentum of this system will become zero

so here we have

P_i = P_f

0 = m_1v_1 + m_2v_2

here we have

0 = (97)v_1 + 0.062(2.6)

v_1 = -\frac{0.1612}{97}

v_1 = -1.66 \times 10^{-3} m/s

3 0
3 years ago
How do I do this physics problem about potential energy and kinetic energy?
larisa86 [58]

Ok i apologise for the messy working but I'll try and explain my attempt at logic

Also note i ignore any air resistance for this.

First i wrote the two equations I'd most likely need for this situation, the kinetic energy equation and the potential energy equation.

Because the energy right at the top of the swing motion is equal to the energy right in the "bottom" of the swing's motion (due to conservation of energy), i made the kinetic energy equal to the potential energy as indicated by Ek = Ep.

I also noted the "initial" and "final" height of the swing with hi and hf respectively.

So initially looking at this i thought, what the heck, there's no mass. Then i figured that using the conservation of energy law i could take the mass value from the Ek equation and use it in the Ep equation. So what i did was take the Ek equation and rearranged it for m as you can hopefully see. Then i substituted the rearranged Ek equation into the Ep equation.

So then the equation reads something like Ep = (rearranged Ek equation for m) × g (which is -9.81) × change in height (hf - hi).

Then i simplify the equation a little. When i multiply both sides by v^2 i can clearly see that there is one E on each side (at that stage i don't need to clarify which type of energy it is because Ek = Ep so they're just the same anyway). So i just canceled them out and square rooted both sides.

The answer i got was that the max velocity would be 4.85m/s 3sf, assuming no losses (eg energy lost to friction).

I do hope I'm right and i suppose it's better than a blank piece of paper good luck my dude xx

4 0
3 years ago
Which of the following elements is in the same period as phosphorus?
Arte-miy333 [17]
The answer is B. magnesium I am pretty sure
5 0
3 years ago
What is a direct result of having greenhouse gases in the atmosphere?
Shalnov [3]

Answer:

Well this is tough. I'm not sure but you are smart and can push through it. YOU DONT need the someone telling you the answer when it is inside you.

hope this helps p

3 0
3 years ago
Read 2 more answers
Other questions:
  • Identify the four main divisions of the peripheral nervous system and explain each one's function.
    13·2 answers
  • Suppose that the process were repeated, except that in step 3 a neutral acrylic rod instead of a finger is used to touch the ele
    11·1 answer
  • 1. in a series circuit, as light bulbs are added, the voltage at the battery increases/decreasees/remains the same
    9·1 answer
  • A car is traveling at a speed of 54 km/h. Breaks are applied so as to produce a uniform acceleration of -0.5 m/s2. Find how far
    14·1 answer
  • Explain why a reference points that are stationary are usually chosen to determine whether an object is in motion.
    6·1 answer
  • If a cart of 4 kg mass has a force of 8 newtons exerted on it, what is its acceleration
    15·1 answer
  • Dr. Alley has helped drill many holes in ice sheets. Special tools can be lowered down the holes on cables, and tracked to learn
    11·1 answer
  • Our ancestors are our guides?​
    5·1 answer
  • a car has a mass of 200kg. It is on a hill 1000m high. How much gravitational potential energy does the car have?
    11·1 answer
  • A rock is thrown horizontally from a building at 15 m/s. It hits the ground 45 m from the base of the building. How high was the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!