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
aksik [14]
3 years ago
12

If a display has a dynamic range of 20 dB and the smallest voltage it can handle is 200 mV, then the largest voltage it can hand

le is_________V.
a. 20

b. 2.0

c. 0.2

d. 0.02
Physics
1 answer:
DedPeter [7]3 years ago
8 0

Answer:

The largest voltage is 0.02 V.

(d) is correct option.

Explanation:

Given that,

Range = 20 dB

Smallest voltage = 200 mV

We need to calculate the largest voltage

Using formula of voltage gain

G_{dB}=10 log_{10}(\dfrac{V_{out}^2}{V_{in}^{2}})

20 =10 log_{10}(\dfrac{V_{out}^2}{V_{in}^{2}})

2=log_{10}(\dfrac{V_{out}^2}{V_{in}^{2}})

10^2=\dfrac{V_{out}^2}{V_{in}^{2}}

\dfrac{V_{out}}{V_{in}^}=10

V_{in}=\dfrac{V_{out}}{10}

V_{in}=\dfrac{200}{10}

V_{in}=20\ mV

V_{in}=0.02\ V

Hence, The largest voltage is 0.02 V.

You might be interested in
At t = 0 the end you are oscillating is at its maximum positive displacement and is instantaneously at rest. Write an equation f
vovikov84 [41]

Answer:

The equation of displacement is y=A\sin(\omega t-2.50 k+\dfrac{\pi}{2}).

Explanation:

Given that,

Distance = 2.50 m

We need to calculate the equation of wave

Using general equation of wave

y=A\sin(\omega t-kx+\phi)....(I)

Where, A = amplitude

t = time

x = displacement

\phi = phase difference

Put the value in the equation

At t = 0, x = 0, y =A

A=A\sin(0+\phi)

\sin\phi=1

\phi=\dfrac{\pi}{2}

From equation (I)

y=A\sin(\omega t-2.50 k+\dfrac{\pi}{2})

Hence, The equation of displacement is y=A\sin(\omega t-2.50 k+\dfrac{\pi}{2}).

7 0
3 years ago
List out some use of atmospheric pressure​
inna [77]

Answer:

<h2>1)Straw : When a man sucks up the fluid from straw the pressure inside is moderately low and accordingly atmospheric pressure outside powers up the fluid into straw. 2)Vacuum cleaner : When a vacuum cleaner is exchanged on, the pressure inside tumble off because of air inside.</h2>
4 0
3 years ago
Read 2 more answers
What are possible units for impulse? Check all that apply. kg • m kg • N • s N • m
Vlada [557]

We know that impulse is simply the product of Force and time:

Impulse = Force * time

 

Since Force has a unit of Newton or kg m/s^2 and time is in seconds, therefore impulse can have units as:

N s

or

<span>kg m/s</span>

4 0
3 years ago
What is the elastic potential energy of a spring that is compressed a distance of 0.35 m and has a spring constant of 71.8 N/m?
Vitek1552 [10]

Answer:

P.E = 4.398 Joules.

Explanation:

Given the following data;

Spring constant, k = 71.8N/m

Displacement, x = 0.35m

To find the elastic potential energy;

The elastic potential energy of an object is given by the formula;

P.E = \frac {1}{2}kx^{2}

Substituting into the equation, we have;

P.E = \frac {1}{2}*71.8 *(0.35)^{2}

P.E = 35.9 * 0.1225

Elastic potential energy = 4.398 Joules.

<em>Therefore, the elastic potential energy of the spring is 4.398 Joules. </em>

3 0
3 years ago
A stagehand starts sliding a large piece of stage scenery originally at rest by pulling it horizontally with a force of 176 N. W
Diano4ka-milaya [45]

<u>Answer:</u>

Option (a)

<u>Explanation :</u>

A stage hand starts sliding a large piece of stage scenery originally at rest by pulling it horizontally with a force of 176 N.

Hence Force applied  \text { Fapplied }=176 \mathrm{N}

Force on piece of scenery \mathrm{F}_{\mathrm{g}}=490 \mathrm{N}

\Sigma \mathrm{F} \mathrm{y}=\mathrm{F} \mathrm{n}-\mathrm{Fg}=0

\mathrm{Fn}=\mathrm{Fg}

\mathrm{FS}_{\mathrm{max}}=\mathrm{F}_{\mathrm{applied}}

µk = \frac{\mathrm{Fs} \max }{\mathrm{Fn}}

=  \frac{\text { Fapplied }}{\mathrm{Fg}}

=\frac{176}{490} =0.36

coefficient of static friction is 0.36

6 0
4 years ago
Other questions:
  • Which best describes the two main functions of transistors in circuits? resisting and amplifying measuring and switching resisti
    7·1 answer
  • When a positively charged rod is used to charge a second rod by induction, the induced charge is?
    6·1 answer
  • The multiple reflection of a single sound wave is a/an
    11·1 answer
  • Which are different ways ultrasound technology may be used? Check all that apply.
    5·2 answers
  • Describe how Heat is related to the internal energy
    12·1 answer
  • The electric field 14.0 cm from the surface of a copper ball of radius 2.0 cm is directed toward the ball's center and has magni
    10·1 answer
  • The total potential and kinetic energy of all the microscopic particles in an object make up its
    6·1 answer
  • It is desired to lay off certain horizontal distances for building layouts. The length of the tapes are not 100.00 ft. Determine
    14·1 answer
  • Current is the movement of positive charges called electrons.
    12·2 answers
  • In the center of the Milky Way galaxy is a<br> A
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!