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
arlik [135]
3 years ago
15

Three identical metal spheres are on insulating stands. Sphere A is given an initial charge of q. Sphere A is then briefly touch

ed to Sphere B. Afterward, Sphere B is then briefly touched to Sphere C. What amount of charge does each sphere now have?
. A

Sphere A - 0.25 q

Sphere B - 0.5 q

Sphere C - 0.25 q


B.

Sphere A - 0.25 q

Sphere B - 0.5 q

Sphere C - 0.25 q


C.

Sphere A - 0.33 q

Sphere B - 0.33 q

Sphere C - 0.33 q


D.

Sphere A - 0.5 q

Sphere B - 0.25 q

Sphere C .025 q
Physics
1 answer:
REY [17]3 years ago
4 0

Answer:

Hi fernyestrealla How r u

You might be interested in
Bill and Ted are standing on a bridge 40 ft above a river. Bill drops a stone, while Ted decides to throw a stone downward at 10
USPshnik [31]

Answer:

D.

Explanation:

In order to know how long after Bill released his rock should Ted throw his if they want the stones to hit the water simultanously, we need to calculate the time needed to hit the water to both rocks independent each other, and just take the difference.

For the rock dropped by Bill, as the only influence on it is gravity (accelerating it downwards with an acceleration equal to g), and v₀ =0, we can use the following kinematic equation:

y = \frac{1}{2} * g * t^{2}

where y = height = 40 ft.

As all the parameters are given in SI units, it is  advisable to convert this value to m, as follows:

y = 40 ft*\frac{0.3048m}{1 ft} = 12.2 m

Now, we can solve for t, as follows:

t = \sqrt{\frac{2*y}{g}} =  \sqrt{\frac{2*12.2m}{9.8m/s2}} = 1.58 s

For the rock thrown down at 10 m/s, the kinematic equation we just have used becomes:

y = v0*t +\frac{1}{2} * g * t^{2}

This leaves us a quadratic equation on t, as follows:

t = \frac{-10m/s}{9.8m/s2} +/- \sqrt{10m/s^{2} -4*4.9m/s2*(-12.2m)} = -1.02 s +/- 1.88s

Taking the positive root, we have:

t = -1.02 s + 1.88 s = 0.86 s

So, in order to get that both rocks hit the water at the same time, Ted will need to wait the difference between both times:

Δt = 0.86 s - 1.58s = -0.72 s

5 0
3 years ago
Which side of the electromagnetic spectrum has shorter wavelengths?
PIT_PIT [208]

Answer:

Hey,

All the answers should be blue.

<em>Edg 2020/2021</em>

8 0
3 years ago
Which statement best describes a risk associated with using radioisotopes in nuclear reactors? A Radioisotopes are very expensiv
maw [93]
The correct answer is :
<span>D If the radiation were to leak out of the reactors, it could cause significant damage to living organisms.
</span><span>
In fact, the ionizing radiation that leaks out from a nuclear reactor is able to modify the DNA of the cells of living organisms, causing mutations and/or diseases like cancer.</span>
6 0
3 years ago
This one question is on fotoeletric effect. Does the kinetic energy of the ejected electrons from metal depends on the intensity
grandymaker [24]
Energy of one photon = kinetic energy of photoelectron + work function energy of metal.
Intensity of radiation is proportional to the number of photons arriving per second
5 0
2 years ago
In an LRC circuit, why does the sum of the voltages around the circuit not equal the applied voltage as kirchhoff’s rule require
wel

Kirchhoff's loop rule is always true.

The foundation of circuit analysis is Kirchhoff's Laws for current and voltage. We have the fundamental set of tools required to begin evaluating circuits with these two principles, In an RLC circuit, the most fundamental elements of a resistor, inductor, and capacitor are connected across a voltage supply.

Learn more about Kirchhoff loop rule here-  

brainly.com/question/15003023

#SPJ4

5 0
1 year ago
Read 2 more answers
Other questions:
  • What name is given to the variable we plot on the x-axis
    8·2 answers
  • Write an essay: qualities of the best student​
    14·1 answer
  • How will heat flow between objects?
    10·2 answers
  • A bird sits on top of a 639 m tall tower. If it's gravitational potential energy up there is 2033 J, what is its mass?
    14·1 answer
  • The newest generation of smart phone uses three different batteries connected in a series simultaneously to extend battery life
    14·1 answer
  • A pendulum has 711 J of potential energy at the highest point of its swing. How much kinetic energy will it have at the bottom o
    6·1 answer
  • Two forces are going in opposite directions each force is 9.
    13·1 answer
  • Exit ticket
    10·1 answer
  • There is a constriction in a clinical thermometer give reasons​
    10·1 answer
  • What is the force applied to a baseball that has a mass of 142kg and has a acceleration of 30m/s to the power of 2
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!