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
PLEASE HELP
GREYUIT [131]

Answer:

h = 1.8 m

Explanation:

The initial velocity of the glove, u =- 6 m/s

We need to find the maximum height of the glove. Let it is equal to h. Using equation of kinematics. At the maximum height v = 0

v^2-u^2=2ah, h is the maximum height and a = -g

0^2-(6)^2=2\times (-10)\times h\\\\h=\dfrac{36}{20}\\\\h=1.8\ m

Hence, it will go up to a height of 1.8 m.

4 0
3 years ago
A skydiver has a mass of 110 kg. At what speed will she have a momentum
Alex17521 [72]

Answer:

\boxed{B}

Explanation:

v=\frac{p}{m}

v=velocity\\p=momentum\\m=mass

v=?\\p=1000\\m=110

v=\frac{1000}{110}

v \approx 9.09

7 0
3 years ago
Read 2 more answers
1. a) Name 2 properties of waves that change if the wave changes media.
Drupady [299]
1.) The properties of a wave are the following.
a) <span><span>Amplitude - the height of the wave, measured in meters.
</span><span>b) Wavelength - the distance between adjacent crests, measured in meters.
</span><span>c) Period - the time it takes for one complete wave to pass a given point, measured in seconds.
</span><span>d) Frequency - the number of complete waves that pass a point in one second, measured in inverse seconds, or Hertz (Hz).
</span><span>e) Speed - the horizontal speed of a point on a wave as it propagates, measured in meters / second.

Among these properties, PERIOD and SPEED changes if the wave changes media. The others remain the same.

2. Speed = Wavelength * Frequency
    Wavelength and Frequency are independent from each other. But you can use the given formula and assume values to check the reaction of one from another.

3. Energy of a wave is based on its amplitude. High amplitude means high energy and vice versa. To increase the energy of a wave, the amplitude must be increased. Another way of increasing the energy of a wave is using elastic medium. </span></span>
3 0
3 years ago
Select the statement that correctly completes the description of phase difference.
KengaRu [80]

Answer:

The difference in the phase angle between any two waves at any given position along the waves.

Explanation:

Phase difference describes  the difference in the phase angle between any two waves at any given position along the waves. The equation of wave is given by :

Wave 1, y=A\ sin(\omega t)

Wave 2, y=A\ sin(\omega t+\phi)

Where

A is the amplitude of wave

\omega is the angular frequency

\phi is the phase difference between two waves

If \Delta d is the path difference, it is given by :

\Delta d=d\ sin\theta

Hence, the correct option is (a) "the difference in the phase angle between any two waves at any given position along the waves".

3 0
4 years ago
It’s your birthday, and to celebrate you’re going to make your first bungee jump. You stand on a bridge 100 m above a raging riv
amm1812

Answer:

X'=50.4\,m

Explanation:

Given that:

Height of jump, h=100\,m

length of elastic cord, l=30\,m

spring constant of the cord, k=40\,N.m^{-1}

mass of the body that jumps, m=80\,kg

Force on the bungee elastic cord:

F=m.g

F=80\times 9.8

Now this force F will be responsible for the elongation in the elastic cord, so:

F=k.x ............................(1)

where :

k = spring constant

x = extension in the elastic cord

using eq. (1)

80\times 9.8=40\times x

x=19.6\,m

So the cord stretches 19.6 meters more beyond its original length of 30 meters.

Hence, the remaining distance from the river surface at the bottom is:

X'=100-(30+19.6)

X'=50.4\,m

3 0
3 years ago
Other questions:
  • It is proposed that future space stations create an artificial gravity by rotating. Suppose a space station is constructed as a
    13·1 answer
  • What are the 4 parts of scientific inquiry
    12·1 answer
  • Answer this plssss<br>12th question<br><br>This is a question which they asked in board
    15·1 answer
  • How many electrons are in the third energy level
    11·2 answers
  • Which describe the image formed by the convex
    5·1 answer
  • Which of the following is not an experimental science
    15·1 answer
  • Find the mass if the force is 18 n and the acceleration is 2 m/s/s
    11·1 answer
  • You push down on a 3 N box for 5 minutes. How much work was done?
    12·2 answers
  • A solenoid has 450 loops each of radius 0.0254 m. The field increases from 0 T to 3.00 T in 1.55 s. What is the EMF generated in
    11·1 answer
  • What is the probability that time headway is at most 6 sec? (round your answer to three decimal places.)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!