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
swat32
4 years ago
14

An amplifier has an input power of 5 mW. The output power is 100 mW. What is the decibel gain to the nearest decibel?

Physics
1 answer:
ZanzabumX [31]4 years ago
3 0

Answer:

<em>The decibel gain to the nearest decibel = 13 db </em>

Explanation:

Gain of an amplifier: This is defined as the measure of the ability of an amplifier to increase the power of a signal from the input to the output port by adding energy converted from some power supply to the signal.

It is represented mathematically as.

db = 10×log (p₂/p₁)............................. Equation 1

Where dp = decibel gain of the amplifier, p₁ = input power of the amplifier, p₂ = output power of the amplifier.

<em>Given: p₁ = 5 mW, p₂ = 100 mW.</em>

<em>Substituting these values into equation 1</em>

db = 10×log(100/5)

db = 10×log(20)

dp = 10 ×1.301

<em>dp = 13 db gain</em>

<em>Therefore the decibel gain to the nearest decibel = 13 db </em>

You might be interested in
4
Zigmanuir [339]

(a) The object moves with uniform velocity from A to B.

(b) The object moves with constant velocity from B to C.

(c) The object moves with increasing velocity from C to D.

<h3>Velocity of the object from point A to B</h3>

V(A to B) = (6 - 0)/(4 - 0) = 1.5 m/s

<h3>Velocity of the object from point B to C</h3>

V(B to C) = (6 - 6)/(11 - 4) = 0 m/s

<h3>Velocity of the object from point C to D</h3>

V(C to D) = (7 - 6)/(12 - 11) = 1 m/s

final velocity = 1 + 1.5 m/s = 2.5 m/s

Thus, we can conclude the following;

The object moves with uniform velocity from A to B.

The object moves with constant velocity from B to C.

The object moves with increasing velocity from C to D.

Learn more about velocity here: brainly.com/question/6504879

#SPJ1

4 0
2 years ago
What happens as water evaporates from a lake
NARA [144]

Answer:

As that liquid water is further heated, it evaporates and becomes a gas—water vapor. So C... Need branliest pls

Explanation:

4 0
3 years ago
Vibrations that move through the ground carrying the energy released during an earthquake are called
Alekssandra [29.7K]
Answer is Seismic Wave
4 0
3 years ago
a paper airplane gliding down towards the ground will experience the force of air resistance pushing up. the weight of the paper
Oduvanchick [21]

The net force acting on the airplane is 25N.

Forces acting on the paper airplane when it is in the air:

  • The forward force generated by the engine, propeller, or rotor is called thrust. It resists or defeats the drag force. It operates generally perpendicular to the longitudinal axis. However, as will be discussed later, this is not always the case.
  • Drag is an airflow disruption generated by the wing, rotor, fuselage, and other projecting surfaces that causes a backward, decelerating force. Drag acts backward and perpendicular to the relative wind, opposing thrust.
  • Weight is the total load carried by airplane, including the weight of the crew, fuel, and any cargo or baggage. Due to the influence of gravity, weight pulls the airplane downward.
  • Lift—acts perpendicular to the flight path through the center of lift and opposes the weight's downward force. It is produced by the air's dynamic influence on the airfoil.

Given.

Weight of the paper airplane, F1 = 16N

The force of air resistance, F2 = 9N

Net force = F1 + F2

Net force = 25N

Thus, the net force acting on the airplane is 25N.

Learn more about the net force here:

brainly.com/question/18109210

#SPJ1

3 0
1 year ago
You go outside on a bright, warm day, How can you tell that you are absorbing radiant energy from the sun?
iVinArrow [24]

Answer:

you start sweating and it would get hot

7 0
3 years ago
Other questions:
  • How many protons are in the radioactive isotope 40/19K?
    14·1 answer
  • A truck moving at 36 m/s passes a police car moving at 45 m/s in the opposite direction. If the frequency of the siren is 500 Hz
    10·1 answer
  • 1. A 59 kg person is in a vehicle travelling at 41 m/s. The vehicle runs into a telephone pole. At impact, it
    10·1 answer
  • Which type of bond is found between the atoms of a molecule?
    15·1 answer
  • Anyone help me please?
    12·1 answer
  • Which geologic events occur most often at this mid-oceanic ridge plate
    8·1 answer
  • Which term refers to how often a person works out?
    6·1 answer
  • A block of mass M is attached to a spring of negligible mass and can slide on a horizontal surface along the x-direction, as sho
    14·1 answer
  • The earliest stage of a star’s life before it begins to undergo fusion is known as:
    9·1 answer
  • If the coefficient of kinetic friction between tires and dry pavement is 0.93. What is the shortest distance in which you can st
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!