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
marta [7]
3 years ago
9

What type of modulation is typically used by broadcasting stations to transmit pictures on television screens?

Physics
2 answers:
katovenus [111]3 years ago
8 0

Answer:

A. Amplitude

Explanation:

i think based on quizlets

erik [133]3 years ago
4 0

Answer:

The correct option is;

Amplitude

Explanation:

When transmitting picture signals over the air by broadcasting stations, the signals are shifted into high frequency channels of Very High Frequency (VHF) or Ultra High Frequency (UHF) carrier currents and imposing the the television signal by changing the amplitude of the high frequency carrier current to match the transmitted television signal waveform shape

You might be interested in
Please help.. urgent Which statement is equivalent to Newton's first law? a. 15,300 N b. 1.20*10^3 N c. 2,030 N d. 1,560 N
taurus [48]
According to Newton laws of motion, 
F = m*a
Here, m = 1,560 Kg
a = 1.30 m/s²

Substitute their values, 
F = 1,560 * 1.30
F = 2028 N ~ 2030 N  [ Closest value ]

In short, Your Answer would be Option C

Hope this helps!
6 0
3 years ago
The formula shown below is used to calculate the energy released when a specific quantity of fuel is burned. Calculate the energ
olya-2409 [2.1K]

Answer: 8400 J

Explanation:

The formula referenced in the question is:

Q=m. c. \Delta T  

Where:

Q  is the thermal energy

m=100g \frac{1 kg}{1000 g}=0.1 kg is the mass  of the water sample

c=4200 \frac{J}{kg\°C}  is the specific heat capacity of  water

\Delta T=20\°C  is the variation in temperature

Solving:

Q=(0.1 kg)(4200 \frac{J}{kg\°C})(20\°C)  

Q=8400 J  This is the thermal energy released

8 0
3 years ago
Which statement best explains the relationship between the electric force between two charged objects and the distance between t
spin [16.1K]
Unfortunately, the given statements are missing from the problem. However, we can still determine the relationship between the electric force between two objects and the distance between them. The formula for the electric force is given below:

F = (k*Q1*Q2)/d^2

k is a constant, while Q1 and Q2 are the respective charges of the objects. F is force, while d is distance.

As seen in the formula, we can see that the electric force F is inversely proportional to the square of the distance between the two objects.
3 0
3 years ago
Which is true of magnetic field lines, but not electric field lines
Stels [109]

Answer:

B) they show which way iron shavings would align themselves

Explanation:

Let's analyze each statement:

A) they are not affected by their own source  --> this is true for both magnetic and electric fields. In fact, both fields are produced (and so affected) by a source (a magnet or a current in the magnetic field case, and an electric charge in the electric field case)

B) they show which way iron shavings would align themselves  --> this is only true for the magnetic field. In fact, the pieces of iron will align according to the magnetic field; however, since they are electrically neutral, they are not affected at all by an electric field.

C) they re stronger near the source and get weaker farther away   --> true for both magnetic and electric fields.

D) the closer the fields lines, the stronger the fields  --> also true for both magnetic and electric fields.

So, the correct answer is B.

7 0
3 years ago
Read 2 more answers
A student performs an experiment in measuring the period of a simple pendulum of known length 49.0 cm.He performed five trials a
Levart [38]
Correct Answer is Bb
4 0
3 years ago
Other questions:
  • Jack travelled 360 km at an average speed of 80 km/h. Elaine
    9·1 answer
  • A 0.450 kg soccer ball has a kinetic energy of 119 J.
    12·1 answer
  • Is a iron a conduction , raidition or convection
    5·1 answer
  • Part b suppose the magnitude of the gravitational force between two spherical objects is 2000 n when they are 100 km apart. what
    8·2 answers
  • I need help with this physics question
    15·1 answer
  • A force of 36 Newtons causes an object to accelerate from rest to a speed of 12 m/s in 6.0 seconds. What is the mass of the obje
    12·1 answer
  • Drawing conclusions.
    13·2 answers
  • LEMME GET SOME HELO HERE PLEASE :))
    5·2 answers
  • How do you calculate density?
    11·1 answer
  • (NO LINKS) A carpenter strikes a nail with a hammer, pushing it into wood.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!