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
gtnhenbr [62]
3 years ago
9

An initially electrically neutral conducting sphere is placed on an insulating stand. A negatively-charged glass rod is brought

near, but does not touch the sphere. Without moving the rod, a wire is then attached to the sphere that connects it to earth ground. The rod and wire are then removed simultaneously. What is the final charge on the sphere?a) negative
b) positive
c) neutral
d) It has a fifty percent chance of having a positive charge and a fifty percent chance of having a negative charge.
Physics
1 answer:
balu736 [363]3 years ago
7 0

Answer: Option (c) is the correct answer

Explanation:

It is known that when a neutral object comes in contact with a charged object then an opposite charge develops on the neutral object. But this development of charge occurs only when both the objects come in contact and if they are not in contact with each other then there occurs no charge on the neutral object.

As in the given situation, negatively-charged glass rod is brought near, but does not touch the sphere. So, there will occur no charge on the sphere.

Thus, we can conclude that final charge on the sphere is neutral.

You might be interested in
g Light that is incident upon the eye is refracted several times before it reaches the retina. As light passes through the eye,
sertanlavr [38]

Answer

Explanation

:giác mạc

7 0
3 years ago
What occurs during the Fall and Spring Equinoxes? *
Lostsunrise [7]

At the time of the Fall equinox (always near September 21),
and the Spring equinox (always near March 21), the days and
nights are nearly the same duration.

The shortest days of the year are around the Winter solstice ...
always near December 21.

The longest days of the year are around the Summer solstice ...
always near June 21.

Eclipses can happen on any day or night of the year.  They're
totally not connected with the equinoxes or solstices.
5 0
4 years ago
What solid-state components in a mobile phone maintain proper voltage levels in the circuits?
grandymaker [24]

Answer:

Diodes helps in maintaining proper voltage levels

Explanation:

Electronic components such as diodes allow current to flow in forward biasing.

Under reverse biasing diode does not allow current to flow but a negligible amount of current does flow.

Forward biasing allow current to flow after crossing potential barrier 0.65\ V.

When crossing this potential barrier we can observe an increase in current but the voltage does not go higher than 0.65\ V. Even with the high input voltage.

Hence, diode maintains proper voltage in circuits.

3 0
3 years ago
In which of those three situations is the magnitude of the car's acceleration the largest? In which of those three situations is
frutty [35]

Answer:

70 mph in only 168 feet is the largest

Explanation:

In which of those three situations is the magnitude of the car's acceleration the largest? In which of those three situations is the magnitude of the car's acceleration the largest? cornering at 0.85g reaching 60 mph in 5 seconds flat stopping from 70 mph in only 168 feet not enough information to determine

a) convert miles/hour to ft/seconds

60mph  

1 mile=5280ft

1hr=3600secs

= 60 * 5280 / 3600 ft/s

=> acceleration

acceleration is the rate of change in velocity

= [60 * 5280 / 3600] / 5 ft/s^2

= 264/15 ft/s^2

= 264/(15 * 32) g  

= 0.55 g

magnitude of acceleration in case 2  

= 0.85 g

magnitude of acceleration in case 3

recall from v^{2} =u^{2}+2as

u=0

v^2/2s=a

velocity , a=acceleration

s=distance covered

= (70 * 5280 / 3600)^2 / (2 * 168 * 32) g

= 0.98 g

=> largest magnitude of acceleration = 0.98 g in case 3  

and smallest magnitude of acceleration = 0.55 g in case 1.

5 0
3 years ago
What is the wavelength associated with 0.113kg ball traveling with velocity of 43 m/s?
Yuki888 [10]

Answer:

Wavelength = 1.36 * 10^{-34} meters

Explanation:

Given the following data;

Mass = 0.113 kg

Velocity = 43 m/s

To find the wavelength, we would use the De Broglie's wave equation.

Mathematically, it is given by the formula;

Wavelength = \frac {h}{mv}

Where;

h represents Planck’s constant.

m represents the mass of the particle.

v represents the velocity of the particle.

We know that Planck’s constant = 6.6262 * 10^{-34} Js

Substituting into the formula, we have;

Wavelength = \frac {6.6262 * 10^{-34}}{0.113*43}

Wavelength = \frac {6.6262 * 10^{-34}}{4.859}

Wavelength = 1.36 * 10^{-34} meters

8 0
3 years ago
Other questions:
  • Is the muzzle velocity a scalar or vector quantity?
    7·1 answer
  • Which is the best description of a molecule?
    9·2 answers
  • The volume flow rate of blood leaving the heart to circulate throughout the body is about 5 L/min for a person at rest. All this
    7·1 answer
  • Which of the following would likely be the best reflector of heat energy?
    6·2 answers
  • Peter went swimming at a lake with his friends. They arrived early in the morning. Peter walked on the sand around the lake with
    14·1 answer
  • Solids in which the atoms have no particular order or pattern are called ___ Solids
    15·2 answers
  • A car traveling at a speed of 30 m/s comes to a stoplight. How much time will it take for the car to stop if its acceleration is
    8·2 answers
  • What storm causes flash floods? <br> Tornado <br> Thunderstorm<br> Hurricane
    8·1 answer
  • If his Christmas lights were wired as a, blank circuit instead of a blank circuit he could avoid this headache
    15·1 answer
  • An electric drill transfers some energy wastefully. Aside from heat, what else carries the energy that it transfers wastefully?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!