1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
KIM [24]
3 years ago
12

A computer is connected across a 110 V power supply. The computer dissipates 123 W of power in the form of electromagnetic radia

tion and heat. Calculate the resistance of the computer.
Physics
2 answers:
Reika [66]3 years ago
4 0

Answer:

98.37 ohms.

Explanation:

Power, P = I × V

Using ohms law,

V = I × R

P = V^2/R

Given:

V = 110 V

P = 123 W

R =110^2/123

= 98.37 ohms.

nexus9112 [7]3 years ago
3 0

Answer:

81.3ohms

Explanation:

Resistance is known to provide opposition to the flow of electric current in an electric circuit.

Power dissipated by the computer is expressed as;

Power = current (I) × Voltage(V)

P = IV... (1)

Note that from ohms law, V = IR

I = V/R ... (2)

Substituting equation 2 into 1, we will have;

P = (V/R)×V

P = V²/R.. (3)

Given source voltage = 100V, Power dissipated = 123W

To get resistance R of the computer, we will substitute the given value into equation 3 to have

123 = 100²/R

R = 100²/123

R = 10,000/123

R = 81.3ohms

The resistance of the computer is 81.3ohms

You might be interested in
Which is not a type of driving distraction
Yuliya22 [10]

No grooming your snail while driving. Just ask Spongebob. Oh by the way, what are the options?

7 0
3 years ago
The long tube that moves food from the mouth to the stomach is called the __________.
AnnyKZ [126]
A the esophaguses!!!!!
3 0
3 years ago
If f(x)=4/x+2 and g is the inverse of f,then g'(10)=​
ch4aika [34]

Answer:

g'(10) = \frac{-1}{16}

Explanation:

Since g is the inverse of f ,

We can write

g(f(x)) = x    <em> </em><em>(Identity)</em>

Differentiating both sides of the equation we get,

g'(f(x)).f'(x) = 1

g'(10) = \frac{1}{f'(x)}    --equation[1]    Where f(x) = 10

Now, we have to find x when f(x) = 10

Thus 10 = \frac{4}{x} + 2

\frac{4}{x} = 8

x = \frac{1}{2}

Since f(x) = \frac{4}{x} + 2

f'(x) = -\frac{4}{x^{2} }

f'(\frac{1}{2})  =  -4 × 4 = -16            

Putting it in equation 1, we get:

We get g'(10) = -\frac{1}{16}

5 0
3 years ago
When does radioactive decay occur
castortr0y [4]

Answer:

C.when the nucleus decays

Explanation:

In chemical reactions, the outermost electrons of atoms are re-arranged somehow without the involvement of the nuclei of the participating atoms of the elements.

Nuclear reactions causes changes within the atomic nucleus. For every atomic nucleus, a specific neutron/proton ratio ensures stability. When the stability ratio differs an atom becomes unstable and splits into one or more other nuclei with the emission of small particles of matter. This is what radioactivity entails.

8 0
3 years ago
When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Find the value of the
nataly862011 [7]

Answer:

Given: V=12 V

            I=2.5 mA

Let the resistance be R

By Ohm's Law, 

V=IR

12=2.5×10−3R

R=4.8×103 Ω

8 0
2 years ago
Other questions:
  • What two bodily functions are increased by a warm up
    10·1 answer
  • Hello, my younger sister is stuck on this and I just got on here to ask this question. I have my original account but I just mad
    11·1 answer
  • A 6.89-nC charge is located 1.76 m from a 4.10-nC point charge. (a) Find the magnitude of the electrostatic force that one charg
    9·1 answer
  • The earth’s magnetic field is located in the _____.
    14·1 answer
  • What are artificial magnets and natural magnets ? examples​
    9·2 answers
  • An object traveling at a constant velocity has no net force. True or False
    12·2 answers
  • 3. What is the main difference between a physical change and a chemical
    15·1 answer
  • A 330.-ohm resistor is connected to a 5.00-volt battery. What is the current through the resistor?
    8·2 answers
  • You have a grindstone (a disk) that is 98.0 kg, has a 0.335-m radius, and is turning at 100 rpm, and you press a steel axe again
    5·1 answer
  • A cannonball has just been shot out of a cannon aimed 45∘ above the horizontal rightward direction. Drag forces cannot be neglec
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!