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siniylev [52]
3 years ago
8

Electrons are made to flow in a wire when there is

Physics
2 answers:
Mila [183]3 years ago
8 0

Answer:

The answer is C.

Explanation:

Rufina [12.5K]3 years ago
5 0

Answer:

C) a potential difference across its ends.

Explanation:

We know , according to Ohm's law, at a constant temperature, current flows through a circuit is directly proportional to the voltage applied.

                   V=I\times R    Here R is resistance provide by circuit.

                   I=\dfrac{V}{R}.

Also, currents flows in the opposite direction of electrons. If current flows then only electron flows.

From Ohm's law , current flows only when their is a potential difference.

Therefore, same goes with electrons as they flow only when current flows electrons.

C) Option is correct.

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Give a ghost story fit for a teen
natulia [17]

Answer: ok so this is a true story when i was little and i always like telling story's so here it is...

Explanation: when i was little i had parents that weren't as good and our house was like scary and it had spiders and i was always scared of them so for Christmas me and my 2 sisters got a doll like a American doll and we got princesses and so my older sister Alexis got Cinderella and my other sister heaven she was the second oldest and she got the little mermaid Ariel and i got belle beauty and the beast and so it was getting late and so me and my sister heaven went to put our dolls away in a box and my sister Alexis wanted to put hers in our room we all share a room and a bed and so she decided to put it on this little princess make up dressing table(i found an image that what it kind of looked like ig) siting down and so everyone was sleeping except my older brother he was the oldest and so he wanted to tell my sister Alexis something and our room door was cracked open and before he went to check on her the doll moved and stand up and when down on the floor and walking in circles and my brother saw it and the doll stopped and the dolls head turned facing him and just drooped and so he ran in his room and stayed up all night till someone else woke up  soo yea he never liked dolls never and now thats it i know it took ling but yea

6 0
2 years ago
A 1130-kg car is held in place by a light cable on a smooth (frictionless) ramp. The cable makes an angle of 31.0° above the sur
zubka84 [21]

Answer:

T = 5163.89 N

Explanation:

Newton's first law:

∑F =0 Formula (1)

∑F : algebraic sum of the forces in Newton (N)

We define the x-axis in the direction parallel to the movement of the car on the ramp and the y-axis in the direction perpendicular to it.

Forces acting on the car

W: Weight of the car : In vertical direction

FN : Normal force : perpendicular to the ramp

T :Tension force:  at angle of 31.0° above the surface of the ramp

Calculated of the Weight  of the car (W)

W = m*g   m: mass   g:acceleration due to gravity

W =   1130-kg* 9.8 m/s² = 11074 N

x-y weight components

Wx =  11074 N*sin 25.0° = 4680.07 N

Wy = 11074 N*cos 25.0° = 10036.45 N

x-y Tension components

Tx = T*cos 25.0°

Ty = T*sin 25.0°

Newton's first law:

∑Fx =0 Formula (1)

Tx-Wx = 0

T*cos 25.0° - 4680.07 = 0

T*cos 25.0° = 4680.07

T =  4680.07 / cos 25.0°

T = 5163.89 N

4 0
3 years ago
A class of students performed the heat transfer experiment shown in the picture. In the experiment, three plastic dishes were pa
balandron [24]

The method of heat transfer used in the experiment is radiation.

Radiation is a method of heat transfer in which there is no material medium that conveys heat. Heat travels through empty space and causes the temperature of objects to rise.

In this case, there was no material medium that conveyed heat from the lamp to the dishes containing the plants. Heat from the lamp traveled through space and reached the dishes. This is an example of heat transfer via radiation.

Learn more: brainly.com/question/12494464

6 0
3 years ago
the crust is the thinnest layer on Earth, which allowed it to have a more constant theory of its composition. how do you think s
OlgaM077 [116]

Answer:

Explanation:

Geologists record the seismic waves and study how they travel through Earth. The speed of these seismic waves and the paths they take reveal how the planet is put together. Using data from seismic waves, geologists have learned that Earth's interior is made up of several layers.

3 0
3 years ago
. A grindstone increases in angular speed from 4.00 rad/s to 12.00 rad/s in 4.00 s. Through what angle does it turn during that
ZanzabumX [31]

Answer:

\theta=32rad

Explanation:

In an uniformly accelerated circular motion, the angle traveled by the object is given by:

\theta=\frac{\omega_f+\omega_0}{2}t

Here \omega_f is the final angular speed, \omega_0 is the initial angular speed and t is the time of the motion. Replacing the given values:

\theta=\frac{12\frac{rad}{s}+4\frac{rad}{s}}{2}(4s)\\\theta=32rad

5 0
3 years ago
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