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2 years ago

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Which components of static electricity does a photocopier use?

1 answer:

Salsk061 [2.6K]2 years ago

8 0

Answer:

For a photocopier to work, a field of positive charges must be generated on the surface of both the drum and the copy paper. These tasks are accomplished by the corona wires. These wires are subjected to a high voltage, which they subsequently transfer to the drum and paper in the form of static electricity.

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Define reflection and give to examples define refraction and give two examples

pickupchik [31]

Reflection- looking at yourself in a mirror and seeing the moon in the sky
Refraction- putting on your glasses in order to see more clearly and the pencil looks like it’s bent when you stick one end of it in water.

6 0

4 years ago

Niobium metal becomes a superconductor (with zero electrical resistance) when cooled below 5.1 K. The permeabilty of free space

katovenus [111]

Answer:

687.5 A

Explanation:

We are given that

$\mu_0=1.25664\times 10^{-6}N/A^2$

Magnetic field,B=0.11 T

Diameter,d=2.5mm

Radius,r= $\frac{d}{2}=\frac{2.5}{2}mm=1.25\times 10^{-3} m$

$1mm=10^{-3} m$

We know that current in coil

$I=\frac{2\pi rB}{\mu_0}$

Substitute the values

$I=\frac{2\pi\times 1.25\times 10^{-3}\times 0.11}{1.25664\times 10^{-6}}$

$I=687.5 A$

8 0

3 years ago

I need 2 examples for each one of Newton's 3 Laws

marusya05 [52]

Answer:

1. An object in motion will stay in motion: A car, and its breaks.

2. Force = mass x acceleration: Kicking a ball.

3. Equal or Opposite reaction: Tugging on your dogs leash as hes trying to run off.

Explanation:

5 0

3 years ago

Read 2 more answers

If you drop a 0.05 kg egg from 2m, what do you predict would be the velocity of the egg before it hits the ground, neglecting ai

Ratling [72]

Explanation:

i think you have to find the velocity by using its wight times the gravity of the earth times the distance it fell?

look in google for a formula the use these sign, w and g ,d

7 0

4 years ago

Read 2 more answers

A 2.0 kg block on a horizontal frictionless surface is attached to a spring whose force constant is 590 N/m. The block is pulled

SVETLANKA909090 [29]

Answer:

The value is $v = -0.04 \ m/s$

Explanation:

From the question we are told that

The mass of the block is $m = 2.0 \ kg$

The force constant of the spring is $k = 590 \ N/m$

The amplitude is $A = + 0.080$

The time consider is $t = 0.10 \ s$

Generally the angular velocity of this block is mathematically represented as

$w = \sqrt{\frac{k}{m} }$

=> $w = \sqrt{\frac{590}{2} }$

=> $w = 17.18 \ rad/s$

Given that the block undergoes simple harmonic motion the velocity is mathematically represented as

$v = -A w sin (w* t )$

=> $v = -0.080 * 17.18 sin (17.18* 0.10 )$

=> $v = -0.04 \ m/s$

7 0

4 years ago