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anyanavicka [17]
3 years ago
7

Jen is conducting an experiment involving a device known as a pith-ball electroscope, shown below.

Physics
2 answers:
Serggg [28]3 years ago
7 0

Answer:

bring each tube close to the plastic ball and note any movement of the ball

Explanation:

Electric fields can exert forces on objects, even if the objects involved are not touching. One way to demonstrate that electric fields exist around charged objects is to observe the effects of their forces at a distance.

Since the plastic ball of the electroscope is made of insulating plastic and is uncharged, it will be attracted to any charged object brought near it. So Jen can observe the effects of the tube's electric fields by bringing each tube close to the plastic ball and noting any movement of the ball. If the ball moves toward a tube, then the process that Jen used on the tube generated an electric field.

andreev551 [17]3 years ago
6 0

Answer:

bring each tube close to the plastic ball and note any movement of the ball

Explanation:

study island

just took the test!!!!!

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Murljashka [212]

Answer:

Are  their any answer chooses

Explanation:

4 0
3 years ago
Read 2 more answers
A car movingin a straight line starts at x = 0 at t = 0. It passes the point x = 25.0 m with a speed of 11.0 m????s at t = 3.00s
makvit [3.9K]

Answer:

Part a)

at t = 3.00 s

v = 8.33 m/s

at t = 20.0 s

v = 19.25 m/s

Part b)

at t = 3.00 s

a = 3.67 m/s^2

at t = 20.0 s

a = 2.25 m/s^2

Explanation:

The car starts at x = 0

Part a)

Now at t = 3.00 s

the position of the car is given as x = 25 m and its speed is given as v = 11 m/s

Now for average velocity we have

v = \frac{displacement}{time}

v = \frac{25 - 0}{3}

v = 8.33 m/s

Now for average acceleration we have

a = \frac{v - 0}{t}

a = \frac{11 - 0}{3}

a = 3.67 m/s^2

Part b)

Now at t = 20.0 s

the position of the car is given as x = 385 m and its speed is given as v = 45 m/s

Now for average velocity we have

v = \frac{displacement}{time}

v = \frac{385 - 0}{20}

v = 19.25 m/s

Now for average acceleration we have

a = \frac{v - 0}{t}

a = \frac{45 - 0}{20}

a = 2.25 m/s^2

4 0
3 years ago
This gradual change in beak size over time is known as _______.
yan [13]
The correct answer is evolution
4 0
4 years ago
Read 2 more answers
If you were to study the cephalic region of the
devlian [24]

Answer:

the standard way the body is positioned when using anatomical terminology ... invisible line that runs vertically through the center of the axial region.

Explanation:

3 0
3 years ago
is it true that parallel worlds exists? if yes or no, give proper reasons and proof. brainliest to the best ​
Daniel [21]

Answer:

It is just a theory that multi verse exists. Researchers have found tracers of mirror particles which could only be from other universe.

Explanation:

Its said above.

5 0
3 years ago
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