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3 years ago

How do the particles in a solid move

Physics

2 answers:

ss7ja [257]3 years ago

7 0

In a solid particles vibrate back and forth

Kisachek [45]3 years ago

5 0

Particles vibrate back and forth in place.

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two parallel plates of area 5.68*10^-4 m^2 have equal and opposite charges of 8.38*10^-11 C placed on them. what is the electric

shutvik [7]

Answer: unit n/c

Explanation: This should be the answer because I just asked my Physics Teachers I hope this is correct

Hope This Helps :)

4 0

3 years ago

Read 2 more answers

The velocity time graph of a car shown below a) Calculate the magnitude of displacement of the car in 40 seconds. b) During whic

Gekata [30.6K]

Answer:

a) 0 metres

b) From time 0 s to 10 s , the car was accelerated. Its velocity accelerated from 0m/s to 20 m/s

c) 20 m/s

Explanation:

a) <em>Formula of displacement= velocity x time</em>

time=40 s

velocity =0 m/s

∴ displacement= 0 x 40 = 0 m

Magnitude of displacement is 0 m

b) The increase in velocity shows that there has been acceleration.

c) The average velocity of the car is = $\frac{0+40}{2\\}$ {initial velocity + final velocity}

= $\frac{40}{2}$

=20

Therefore, the magnitude of the average velocity of the car is 20 m/s

3 0

3 years ago

If a power utility were able to replace an existing 500 kV transmission line with one operating at 1 MV, it would change the amo

mestny [16]

Answer:

It would change the amount of heat produced in the transmission line to four times the previous value.

Explanation:

Given;

initial voltage in the transmission line, V₁ = 500 kV = 500,000 V

Final voltage in the transmission line, V₂ = 1 MV = 1,000,000

The power lost in the transmission line due to heat is given by;

$P = \frac{V^2}{R}$

Power lost in the first wire;

$P_1 = \frac{V_1^2}{R}$

$R = \frac{V_1^2}{P_1}$

Power lost in the second wire

$P_2 = \frac{V_2^2}{R}\\\\ R = \frac{V_2^2}{P_2}$

Keeping the resistance constant, we will have the following equation;

$\frac{V_2^2}{P_2} = \frac{V_1^2}{P_1} \\\\P_2 = \frac{V_2^2P_1}{V_1^2}\\\\$

$P_2 = \frac{(1,000,000)^2P_1}{(500,000)^2}\\\\P_2 =4P_1$

Therefore, it would change the amount of heat produced in the transmission line to four times the previous value.

8 0

3 years ago

A 21 KG chair initially at rest on a horizontal floor requires a 167 N horizontal force to set it in motion once the chair is in

Yakvenalex [24]

The chair and floor have a static friction coefficient of 7.9523 and a kinetic friction coefficient of 0.8114, respectively.

<h3>What causes static friction?</h3>

The braking force of an item is static friction. The resistance humans encounter when attempting to move something fastened to the ground without actually moving thier own bodies or the surface that are sitting on is described as static friction.

<h3>What causes static friction to form?</h3>

Adhesion, a slight chemical attraction between contact objects, is what causes static friction. Friction is also produced by the interaction of the flaws on each surface.

To know more about static friction visit:

brainly.com/question/13754413

#SPJ13

6 0

1 year ago

Define polarization in reference in the simple cell

vampirchik [111]

Answer:polarization pertains to the act or process of producing a positive electrical charge and a negative electrical charge such that between a nerve cell internal electrical charge..................

Explanation:

7 0

4 years ago