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
ss7ja [257]
2 years ago
9

A negative oil droplet is held motionless in a millikan oil drop experiment. What happens if the switch is opened?

Physics
1 answer:
scoray [572]2 years ago
0 0

In Millikan oil drop experiment, when the switch is opened and by altering supply the charge of electron is determined.

Explanation:

Millikan's oil drop experiment is held to determine the terminal velocity and charge of the oil drop.

Firstly without any supply of voltage when an oil drop is sprinkled and these droplets gather electrons together and gives negative charge as they pass through air.

By applying and altering voltage applied on the plates, drop can be suspended in air. Millikan observed one drop after another, varying the voltage and noting the effect. After many repetitions he concluded that charge could assume only certain fixed values.

After conducting many times he concluded 1.602176487 ×10−19 C as the charge of an electron.

You might be interested in
A plate drops onto a smooth floor and shatters into three pieces of equal mass.Two of the pieces go off with equal speeds v at r
Firlakuza [10]

Answer:

Speed of the this part is given as

v_3 = \sqrt2 v

Also the direction of the velocity of the third part of plate is moving along 135 degree with respect to one part of the moving plate

Explanation:

As we know by the momentum conservation of the system

we will have

P_1 + P_2 + P_3 = P_i

here we know that

P_1 = P_2

the momentum of two parts are equal in magnitude but perpendicular to each other

so we will have

P_1 + P_2 = \sqrt{P^2 + P^2}

P_1 + P_2 = \sqrt2 mv

now from above equation we have

P_3 = -(P_1 + P_2)

mv_3 = -(\sqrt 2 mv)

v_3 = \sqrt2 v

Also the direction of the velocity of the third part of plate is moving along 135 degree with respect to one part of the moving plate

6 0
2 years ago
Pls hurry I’m timed Which describes the formation of horizon B?
ioda
First one but I am not sure
8 0
2 years ago
Read 2 more answers
Magma usually stays below the Earth's
Vesna [10]

Answer:

In the inner vote part of the earth

5 0
2 years ago
If two objects have different temperatures when they come in contact, heat will flow from the warmer
r-ruslan [8.4K]

Answer:

They both have an equal temperature.

Explanation:

Any material or object that allow the conduction (transfer) of electric charge or thermal energy is generally referred to as a conductor. Some examples of a conductor are metals, copper, aluminum, graphite, etc.

In the process of heat conduction, thermal energy is usually transferred from fast moving particles to slow moving particles during the collision of these particles. Also, thermal energy is typically transferred between objects that has different degrees of temperature and materials (particles) that are directly in contact with each other but differ in their ability to accept or give up electrons.

Hence, if two objects have different temperatures when they come in contact, heat will flow from the warmer object to the cooler one until they both have an equal temperature.

3 0
2 years ago
coin 1 is thrown upward from the top of 100m tower with a speed of 15m/s. coin 2 is dropped from the top of the tower 2.0second
kvv77 [185]

The height below the tower at which coin 1 pass coin 2 is 89.04 m.

The given parameters:

height of the tower, h = 100 m

initial velocity of coin 1, v = 15 m/s

time spent in air by coin 1 before coin 2 was dropped = 2s

To find:

  • the height below the tower at which coin 1 passes coin 2

Find the maximum height attained by coin 1 before falling to the ground:

v^2 = u^2 - 2gh\\\\where;\\\\v \ is \ the \ final \ velocity \ of \ coin \ 1 \ at \ maximum \ height, v \ = 0\\\\0 = (15^2) - 2(10)h\\\\20h = 225\\\\h = \frac{225}{20} \\\\h = 11.25 \ m

Find the time taken for coin 1 to fall to the ground:

Total height of coin 1 above the ground, H = 11.25 m + 100 m = 111.25 m

t = \sqrt{\frac{2H}{g} } \\\\t = \sqrt{\frac{2\times 111.25}{10} } \\\\t = 4.72 \ s

But the time taken for the coin 1 to reach 11.25 m above the tower:

t_1 = \sqrt{\frac{2h}{g} } \\\\t_1 = \sqrt{\frac{2\times 11.25}{10} } \\\\t_1 = 1.5 \ s

Total time spent by coin 1 before reaching ground with respect to coin 2:

time = (1.5 s + 4.72 s) - 2 s

time = 4.22 s

<u>Note:</u><em> the 2 s was subtracted to keep both coins at a fair starting time below the tower</em>.

Find the total time taken for coin 2 to fall to the ground:

Height of coin 2 above the ground = 100 m

Total time taken by coin 2 before falling to the ground is calculated as:

t_2 = \sqrt{\frac{2(100)}{10} } \\\\t_2 =  4.47s

The time  at which coin 1 will pass coin 2 is 4.22 s.

Find the height below the tower when the time is 4.22 s.

h = \frac{1}{2} (10)(4.22)^2\\\\h = 89.04 \ m

Thus, the height below the tower at which coin 1 pass coin 2 is 89.04 m.

Learn more here: brainly.com/question/18943273

6 0
3 years ago
Other questions:
  • The term used to describe the quantity of matter that a body possesses is
    15·2 answers
  • A 35 g steel ball is held by a ceiling-mounted electromagnet 4.0 m above the floor. A compressed-air cannon sits on the floor, 4
    10·1 answer
  • If you exert a force of 500 n to walk 4 m up a flight of stairs in 4 s, how much power do you use?
    6·1 answer
  • Air in the amount of 2 lbm is contained in a well-insulated, rigid vessel equipped with a stirring paddle wheel. The initial sta
    7·1 answer
  • 19. The work done by a magnetic field on a charged particle moving in it is:
    5·1 answer
  • How long will it take an object to move 200 meters if the object is traveling with an average speed of 5 m/s
    7·1 answer
  • Two 2.0 kg bodies, A and B, collide. The velocities before the collision are
    10·1 answer
  • I’m carbon cycle, CO2 is mainly stored in
    14·1 answer
  • Parallel light waves hit the surface of a still lake and reflect in the same direction. Which interaction of light and matter do
    8·1 answer
  • There are space stations Alpha and Beta located on the line between the planets. Both space stations are at rest with respect to
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!