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
Yakvenalex [24]
3 years ago
12

Pls help asap. easy science question.

Physics
2 answers:
Solnce55 [7]3 years ago
6 0

This is not a very good set of choices.\

ANY type of electromagnetic wave can be used to send information from place to place, IF we can set up the following conditions:

-- We can only use the electromagnetic waves that are not dangerous to be around.

-- We also can't use the ones that can be blocked or degraded by natural things, like rain, fog, or smoke.  

-- We need an easy way to generate them whenever we want them.

-- We need an easy way to change something about them in a pattern that carries the information.

-- We need an easy way to detect them.

-- We need an easy way to accurately detect the changes, so that we can pull the information off of them.

The electromagnetic waves that DO meet all of those requirements, and we DO use to communicate information are:

-- Radio

-- Microwave

-- Infra-red

-- Visible light

(We use visible light to transmit information when we send it through an optical fiber, and also when we wave at our friend across the street !)

Zanzabum3 years ago
3 0

microwaves and radio waves can transmit info. Radio waves can be used for radio. Microwaves are used in tv remotes and etc.

You might be interested in
Located adjacent to red on the electromagnetic spectrum, and having a longer wavelength, is ________ radiation, which we cannot
Kaylis [27]

Answer:

infrared radiation

Explanation:

infrared radiation - infrared radiation is part of electromagnetic radiation which wavelength range from about 700 nano meters (nm) to 1 millimeter (mm).

Infrared radiation is invisible to  naked eye,  however it can be felt as heat for longer duration infrared waves. Any type of radiation — whether it is  visible light or radio waves — may possibly be hazardous if extremely focused in a high-powered narrow beam

4 0
3 years ago
Ice cubes,icicles,snowflakes, and glaciers are water in..
IRISSAK [1]
Those are in a solid state.
8 0
4 years ago
Read 2 more answers
(no links or files) What types of waves are shown in this image?
rewona [7]

Answer:

Absorbed and reflected

Explanation:

B is reflected because you can’t see the red arrow which represents a light that bounces off of it and a aired up sword because you can see it win through the object shown in the picture

3 0
3 years ago
Read 2 more answers
If an ion is negatively charged it has more _ than _
Sergio [31]
If an ion is negatively charged, it has gained electrons and now has more electrons than protons because before the atom became ionized it was neutrally charged.
6 0
3 years ago
A hammer is thrown upward with a speed of 14 m/s on the surface of planet X where the acceleration due to gravity is 3.5 m/s2 an
Marina CMI [18]

Pretty simple

The no atmosphere says that theres no air resistance, making the problem 10 times easier.

If the hammer is thrown upwards, it has a positive inital velocity of 14m/s

Now gravity is trying to pull it downwards so the accelerating is -3.5m/s^2 (closest planet I can think off with this acceleration is Mercury, but thats besides the point)

Anyways we can use kinematic equations to solve that

Vf = vi + at

Vf = 14m/s +(-3.5)(8)

Vf = -14 m/s

So after 8 seconds the ball is going downwards at the same height that you threw it.

answer : -14m/s or you can say 14m/s downwards

7 0
4 years ago
Other questions:
  • The images formed by diverging (concave) lenses are always _____. real virtual upright inverted magnified diminished
    6·2 answers
  • Dr. Perez is part of a team of researchers who are working on designing and building a probe to study solar flares. What conditi
    10·2 answers
  • A box sits on a horizontal wooden ramp. The coefficient of static friction between the box and the ramp is 0.34. You grab one en
    12·1 answer
  • I don't understand these question please explain and answer them...Please!
    11·1 answer
  • When you look at a car's speedometer while driving, you are seeing the car's __________.
    10·1 answer
  • What is the speed of a wave if the wavelength is 200 m and the period is 20 s?​
    5·1 answer
  • Raindrops are falling straight down at 11 m/s when suddenly the wind starts blowing horizontally at a brisk 5.0 m/s. From your p
    6·1 answer
  • What is the mass of a liter of gasoline that has a density of 0.70 g/cm3
    13·1 answer
  • 7Unreasonable results A dolphin in an aquatic show jumps straight up out of the water at a velocity of 15.0 m/s.
    5·1 answer
  • What Is Rotational Motion?​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!