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Basile [38]
3 years ago
11

Which of the following is the discharge build up of excess electrical charge? electrical charge current electricity electron sta

tic electricity
Physics
2 answers:
mihalych1998 [28]3 years ago
5 0
E.S.D. (Electrostatic discharge) is the sudden spurts of electricity between two or more electrically charged objects. So that build up of static electricity can be formed by tribocharging, or rubbing the two objects together really fast. so the answer is static.
cluponka [151]3 years ago
3 0

Answer:

E.S.D. (Electrostatic discharge) is the sudden spurts of electricity between two or more electrically charged objects. So that build up of static electricity can be formed by tribocharging, or rubbing the two objects together really fast. so the answer is static...............................................................................................................

Explanation:

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What quantity of heat must be removed from 20g<br>of water at 0°C to change it to ice at 0°C?​
seraphim [82]

The quantity of heat must be removed is 1600 cal or 1,6 kcal.

<h3>Explanation : </h3>

From the question we will know if the condition of ice is at the latent point. So, the heat level not affect the temperature, but it can change the object existence. So, for the formula we can use.

\boxed {\bold {Q = m \times L}}

If :

  • Q = heat of latent (cal or J )
  • m = mass of the thing (g or kg)
  • L = latent coefficient (cal/g or J/kg)
<h3>Steps : </h3>

If :

  • m = mass of water = 20 g => its easier if we use kal/g°C
  • L = latent coefficient = 80 cal/g

Q = ... ?

Answer :

Q = m \times L \\ Q = 20 \times 80 = 1600 \: cal

So, the quantity of heat must be removed is 1600 cal or 1,6 kcal.

<u>Subject : Physics </u>

<u>Subject : Physics Keyword : Heat of latent</u>

4 0
3 years ago
One isotope of bromine has an atomic mass of 78.92amu and a relative abundance of 50.69%. The other major isotope of bromine has
castortr0y [4]

Answer:

The average atomic mass is 79.91 amu.

Explanation:

Since  

Atomic mass can be find by Multiplying the relative abundance of each isotope by its atomic mass, then add them together to get the atomic mass of the element.

so

Atomic  mass = (0.5069)(78.92 amu) + (0.4931)(80.92 amu)

                       =79.91 amu

So the Atomic mass of the  bromine is 79.91amu.

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3 years ago
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