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maria [59]
3 years ago
13

A ) Find the current through the 20 A resistor.

Physics
1 answer:
Vadim26 [7]3 years ago
5 0

Answer:

Power is associated by many people with electricity. Knowing that power is the rate of energy use or energy conversion, what is the expression for electric power? Power transmission lines might come to mind.

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A 86.3 μC charge has a potential of 17.5 V. Determine how much kinetic energy, in eV, this charge could have.
almond37 [142]

Answer:

9.44 eV

Explanation:

q = Amount of charge = 86.3 μC = 86.3 x 10⁻⁶ C     (Since 1 μC =  10⁻⁶ C)

V = Electric potential of the charge = 17.5 Volts

U = Amount of electric potential energy carried by charge

Amount of electric potential energy carried by charge is given as

U = q V

Inserting the values

U = (86.3 x 10⁻⁶) (17.5)

U = 0.00151 J

U = \frac{0.00151}{1.6\times 10^{-19}}

U = 9.44 eV

KE = Kinetic energy the charge could have

Using conservation of energy

KE = U

KE = 9.44 eV

5 0
3 years ago
how do humans judge temperature without the use of instruments such as thermometers? choose the most common process.
Schach [20]

Some humans judge temperature without the use of instruments include:

  • touching the object
  • feeling the radiant energy

<h3>What is temperature?</h3>

Temperature is the measure of the degree of hotness or coldness of a substance.

Temperature of substances are usually measured using thermometers.

The choice of thermometer depends on the temperature range to be measured.

However, some crude ways of measuring temperature include:

  • touching the object
  • feeling the radiant energy

In conclusion, temperature measures the hotness or coldness of objects.

Lear more about temperature at: brainly.com/question/25677592

#SPJ1

5 0
2 years ago
The direction of electrical force is based on the fact that like charges will
tigry1 [53]

yes

Explanation:

because hindi ko tlaga ala

6 1
3 years ago
A 2-kg object is initially at the bottom of a long 50° inclined plane, and is beginning to slide up this inclined plane. The ini
Over [174]

Answer:

Explanation:

Given

mass of object m=2 kg

inclination \theta =50^{\circ}

\mu _k=0.3

\mu _s=0.4

initial velocity u=3 m/s

acceleration of block during upward motion

a=g\sin \theta -\mu _kg\cos \theta

a=g(\sin 50-0.3\cos 50)

a=5.617 m/s^2

using relation

v^2-u^2=2a\cdot s

where s=distance\ moved

v=final\ velocity

v=0 because block stopped after moving distance s

0-(3)^2=2\cdot (-5.617)\cdot s

s=\frac{4.5}{5.617}

s=0.801

If block stopped after s m then force acting on block is

F=mg\sin \theta =friction force f_r=\mu mg\cos \theta

F>f_r therefore block will slide back down to the bottom            

4 0
3 years ago
A student pushes a 5 kg box initially at rest along a flat, rough table with a rightward force of 10 N. The frictional force act
Pie

Answer:

Please find attached pdf

Explanation:

Download pdf
8 0
3 years ago
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