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
LekaFEV [45]
3 years ago
9

A car radio draws 0.27 A of current in the autos 12-V electrical system. (a) How much electric power does the radio use?

Physics
1 answer:
Lostsunrise [7]3 years ago
8 0

Answer:

(a) 3.24 w (b) 44.44 ohm

Explanation:

It is given that car draws 0.27 A current so current I = 0.27 A

The system has a voltage of 12 V

(a) Electrical power = voltage ×current =12\times 0.27=3.24W

(b) The resistance is defined as the ratio of voltage and current

So resistance R=\frac{V}{I}=\frac{12}{0.27}=44.44 ohm

You might be interested in
Grade 10 My smart Physics people help me with this review question please
Kaylis [27]

Answer: a = 1, b = 9, c = 6, d = 4

Explanation:

With no velocity, total mechanical energy is all gravity potential energy

PE = mgh = 80.0(9.81)(25) = 19,620 J = 1.96e4 J

3 0
3 years ago
The primary difference between a barometer and a manometer is
Nitella [24]

Answer:

a barometer is used to measure atmospheric pressure, and a manometer is used to measure gauge pressure.

Explanation:

A barometer measures air pressure at any locality with sea level as the reference.

However, a manometer is used to measure all pressures especially gauge pressures. Thus, if the aim is to measure the pressure at any point below a fluid surface, a barometer is used to determine the air pressure. The manometer may now be used to determine the gauge pressure

The algebraic sum of these two values gives the absolute pressure.

4 0
3 years ago
Different asteroids reflect different percentages of the light falling on them. This is due to the fact that they have different
Georgia [21]

Due to the Composition, different asteroids reflect different percentages of the light falling on them.

What are Asteroids:

  • Asteroids are small, rocky objects that orbit the Sun. Although asteroids orbit the Sun like planets, they are much smaller than planets.
  • Asteroids are generally made up of rocky material, metals and their size are large in  comparison to comets. Asteroid belt is found between Jupiter and Mars.

Composition of Asteroids:

  • Most of the asteroids in the Main Belt are made of rock and stone.
  • The remaining asteroids are made up of a mix of these, along with carbon-rich materials. Some of the more distant asteroids tend to contain more ices.

We determine reflectivity of asteroids by comparing the brightness of light in the visible spectrum to the brightness of light in the infrared spectrum. The light shining from asteroids is reflected sunlight.

Hence we can say that,

Due to the Composition, different asteroids reflect different percentages of the light falling on them.

Learn more about Asteroids here:

<u>brainly.com/question/13047582</u>

<u />

#SPJ4

4 0
2 years ago
When a space shuttle takes off, the chemical reactions of the fuel give the shuttle the kinetic energy to leave Earth's atmosphe
inessss [21]

Answer:a

Explanation:

Because its has to use tihs potential energy to overcome the atmosphere so the shuttle will not go back down

6 0
3 years ago
When sound is created it travels to the car through a
Rasek [7]

A sound wave is a longitudinal wave caused by vibrations and carried through a substance. The particles of the substance, such as air particles, vibrate back and forth along the path that the sound waves travel. Sound is transmitted through the vibrations and collisions of the particles.

This could maybe help you with your answer.

4 0
3 years ago
Other questions:
  • An observer sees a lightning flash from a distant thunder-storm and 12 seconds later hears the sound. if the temperature of the
    9·1 answer
  • The temperature of 4.29 mol of an ideal diatomic gas is increased by 27.1 ˚C without the pressure of the gas changing. The molec
    5·1 answer
  • The picture below shows a soil texture triangle.
    5·1 answer
  • Which of the following changes would cause the fusion rate in the sun’s core to increase?
    10·1 answer
  • Crystal kick the 3.0 kg soccer ball horizontally off of the top of a building the building is 6.0 m tall and the ball lands 10.0
    11·1 answer
  • What is heat that is transferred by movement of a fluid
    7·1 answer
  • A moving electron passes near the nucleus of a gold atom, which contains 79 protons and 118 neutrons. At a particular moment the
    10·1 answer
  • A baseball player hit a ball with an upward velocity of 46
    13·1 answer
  • An airplane flies with a constant speed of 560 miles per hour. How long will it take to travel a distance of 840 miles?​
    8·1 answer
  • 5. George walks to a friend's house. He walks 750 meters North, then realizes he walked too far.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!