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daser333 [38]
3 years ago
12

How radiowave work ​

Physics
2 answers:
DiKsa [7]3 years ago
8 0

Answer:

antenna

Explanation:

Anika [276]3 years ago
8 0

Answer: How Do Radio Waves Work?  

Blackbody Radiation. A blackbody is an object that absorbs, then re-emits, radiation.

Free-Emission Radiation. When electrons in gas atoms become dislodged or stripped, they are ionized.

Spectral Line Emission. The third type of thermal emission is spectral line emission.

Synchrotron Emission. This is a non-thermal form...

Explanation:Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Radio waves have frequencies as high as 300 gigahertz (GHz) to as low as 30 hertz (Hz). At 300 GHz, the corresponding wavelength is 1 mm, and at 30 Hz is 10,000 km. Like all other electromagnetic waves, radio waves travel at the speed of light in vacuum. They are generated by electric charges undergoing acceleration, such as time varying electric currents. Naturally occurring radio waves are emitted by lightning and astronomical objects.

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Bile helps in the digestion of —————-
Gnoma [55]

Answer:

Bile helps in the digestion of fats

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3 years ago
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A car advertisement claims their car can go from a stopped position to 60 miles per hour in 5 seconds. The advertisement is desc
Komok [63]

Answer:

Acceleration

Explanation:

The advertisement is describing the acceleration of the car.

Acceleration is the rate of change of velocity per unit of time. It can be expressed mathematically as;

 Acceleration  = \frac{v  - u}{t}  

 v is the final velocity

 u is the initial velocity

 t is the time taken

 Any quantity that specifies the rate of change of velocity of a body within a given time frame is describing its acceleration.

5 0
3 years ago
Y’all this assignment determines if i pass , please help me out.. Part 2: Graphing the Effect of Changing Mass and Velocity on K
jarptica [38.1K]

Answer:

* energy is proportional to masses. in a graph it would look like a line

* kinetic energy varies with the square of the velocity, In a graph it gives rise to a quadratic curve

Explanation:

Kinetic energy is defined by

        K = ½ m v²

when analyzing this expression we can see:

* energy is proportional to masses. Therefore, doubling the mass doubles the kinetic energy and if the mass rises 4 times the energy rises 4 times, that is, they are directly proportional, in a graph it would look like a line

* kinetic energy varies with the square of the velocity. Therefore by doubling the speed the energy goes up 4 times. In a graph it gives rise to a quadratic curve

5 0
3 years ago
It takes 8 seconds for a pulley system to lift a load that weights 400N to a height of 10 m. How much power is required?.
mariarad [96]

Answer:

C. 500 watts

Explanation:

power is defined as the rate of work done

power=\frac{work.done}{time}

When a force causes a object to move, work is being done on the object by the force.

work.done=force*displacement\\=400*10\\=4000J

power=\frac{4000J}{8s}\\=500 W

3 0
4 years ago
What is the formula for force?
Vitek1552 [10]
Choice 'b' is one possible way to state
Newton's second law of motion.

The other choices are meaningless.
8 0
4 years ago
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