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
Marrrta [24]
3 years ago
13

Help please, i am lost.

Physics
1 answer:
AURORKA [14]3 years ago
4 0

Answer:

nas wr hdrtuendnetyje because

Explanation:

You might be interested in
Physical science help!
Scrat [10]

Answer:

Let's begin by explaining that the <u>electromagnetic spectrum</u> is the set of electromagnetic radiations distributed in their different frequencies or wavelengths. So, if we go from the smallest wavelengths known up to now (because according to physics the electromagnetic spectrum is infinite and continuous) to the longest, the electromagnetic spectrum covers the following radiations:  

Gamma rays, X-rays, ultraviolet, visible light, infrared, radio waves and microwaves:

-Gamma rays: With a wavelength in the order of 10^{-12}m, is a type of ionizing radiation capable of penetrating matter quite deeply and is able to cause serious damage to the nucleus of the cells.

-X rays: With a wavelength between 1m and 10km. It is invisible to the human eye, capable of crossing opaque bodies and is also an ionizing radiation.

-Ultraviolet light (UV): Whose wavelength is approximately between 100 nm and 380 nm; is a type of electromagnetic radiation that is not visible to the human eye.  

-Visible light: This part of the spectrum is located between ultraviolet light and infrared light (400 nm - 800 nm). It should be noted, the fact the only part of the whole electromagnetic spectrum is visible to humans is because the receptors in our eyes are only sensitive to these wavelengths.

-Infrared: This type of radiation is not visible to the human eye, since its wavelengths are outside the visible spectrum (between 700 nm and 1 mm).  

These waves can be divided into:  

- Near infrared or long wave infrared: it is the least sensitive to color and is easily absorbed by water.  

- Medium or medium wave infrared: it is also insensitive to color and easily absorbed by water and many types of plastics and paints.  

- Far infrared or short wave infrared: it is more penetrating than the long wave and is good for heating metals, these waves also can pass through clear materials.  

This light has many uses, including heating lamps in physiotherapy and medical treatments, heat sensing devices, among others.

-Radio waves: This is a type of electromagnetic radiation with wavelengths between 10 m to 10,000 m. This type of electromagnetic waves is very well reflected in the ionosphere, the layer of the atmosphere through which they travel directly or using repeaters. In addition, this radiation is important in telecommunications.

3 0
3 years ago
What makes a model not useful?
lina2011 [118]
Answer is b hope this helps
8 0
3 years ago
The metric unit to measure work which equals one newton meter<br> is called?
Solnce55 [7]
The metric unit to measure work which equals one newton meter is called One Joule.
8 0
3 years ago
What profession is most likely to make use of amphoras and candelas
Monica [59]
Biologists probably
5 0
3 years ago
A running back with a mass of 70 kg travels down the field with a velocity of 5.0 m s . Calculate the kinetic energy of the foot
jarptica [38.1K]

K.E = 1/2 mv²

    =  1/2 (70kg) (5.0ms)²

    =  1 ˣ ( 1750) / 2

    = 875 kgms²

     

3 0
3 years ago
Read 2 more answers
Other questions:
  • A ray passing through optical centre don't deviate ? why​
    13·1 answer
  • According to the principle of conservation of momentum, A. the amount of momentum of all the objects in the universe is constant
    15·1 answer
  • Release an electron initially at rest in the presence of an electric field. The electron tends to go to the region of 1. same el
    13·1 answer
  • As air temperature approaches the dew point, what happens to the relative humidity?
    15·2 answers
  • In which of the following can you not find plasma
    15·1 answer
  • The theory of nuclear astrophysics is that all the heavy elements like uranium are formed in the interior of massive stars. Thes
    12·1 answer
  • Hydrometer is a devise used to measure the volume of a liquid. *<br> True<br> False
    12·1 answer
  • Plz help me find the answers
    5·2 answers
  • Witch force is represented by arrow at c?
    10·1 answer
  • A 500-kg golf cart is moving on level ground in a circular path of radius 10 m with a speed of 12 m/s. What is the centripetal f
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!