How are both radio waves and microwaves used for methods of communication?

Answers

Answer 1

Answer:

Answer: Radio waves is a type for wave that is used to transmit television and radio programmes, while microwaves can be used for phone communication.

Explanation: Radio waves and microwaves are types of electromagnetic radiation that has the longest wavelengths and the lowest frequency and it carries the least amounts of energy. This causes it to interact with mostly nothing as it travels, therefore it is just easier to transmit information as there is no disturbance in the transmittion.

Answer 2

Answer: Radio waves and microwaves are types of electromagnetic radiation with the longest wavelengths, lowest frequency and carry the least amounts of energy. This causes it to interact with mostly nothing as it travels, therefore it is just easier to transmit information as there isn't any major disturbance in the transmittion. If it was any other type of radiation, the signal would be unclear and in most cases impossible to process.

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Help?? When vibrational motion in an object increases, which is a true statement? A.
Kinetic energy and temperature decrease; thermal energy increases.

B.
Kinetic energy, temperature, and thermal energy decrease.

C.
Kinetic energy and temperature increase; thermal energy decreases.

D.
Kinetic energy, temperature, and thermal energy increase.

i think its D, but im not sure.

Answers

The answer should be "D", Because the vibration would heat up the object causeing the temperature and thermal energy to increase. Since the object is moving (Vibration), then it is using kinetic energy, so that also increases.

Which change is the best example of a physical change?1) a cookie baking
2) paper burning
3) ice cream melting
4) a nail rusting

Answers

The answer would be a nail rusting, but really it could be any of these.

Answer: 3

Explanation:

What is a series circuit? (Definition)

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A series circuit is a circuit in which resistors are arranged in a chain, so the current has only one path to take. The current is the same through each resistor. The total resistance of the circuit is found by simply adding up the resistance values of the individual resistors:

if you use the compound pulley, you will need to pull twice the distance but with less force. the force you need is equal to one half the weight of the box plus 25 N. what is the force needed?

Answers

Answer:

F= 25/2 = 12.5N

Explanation:

When you use a compound pulley the force required depends on the mechanical advantage of the compound pulley. This is known as rate of loss of distance or the ratio of the force to the load.

M.A = Effort distance /Load distance. OR M.A = Load/Effort

Are the light waves reflecting off a red stop sign longer or shorter than the waves reflecting off a Violet colored jacket

Answers

The light waves reflecting off a red stop sign longer than the waves reflecting off a Violet colored jacket.

The visible spectrum is composed of seven wavelengths. These wavelengths are red, orange, yellow, green, blue, indigo, violet. The wavelengths of these waves decrease in this order.

This means that the wavelength of red light is longer than the wavelength of violet light therefore the light waves reflecting off a red stop sign longer than the waves reflecting off a Violet colored jacket.

Learn more: brainly.com/question/14281129

The light waves reflecting off a red stop sign(in road) are longer than those waves reflecting off a violet-colored jacket. Red has the longest waves.

If a droplet has three extra electrons, what is it’s measured charge?