1)Radio and gamma waves are examples of what type of waves? 2.) Give one place where total internal reflection may occur?
3.). What are the two types of seismic waves?
4.). Which electromagnetic wave has the most energy?
5.) At what speed do all electromagnetic wave travels in a vacuum?
6.) What happens to the speed light when it enters the water?
7) What properties of radio waves make them suitable for sending signals in mountainousregions?
8). What word describes waves that have enough energy to change an atom?
9.). Which e-m waves have the highest energy?
10). Which 2 types of e-m waves are used for cooking?
11.) What region of the e-m spectrum can our eyes detect?
12.) Which forms of e-m radiation are ionizing?
13.)What can be an effect of long-term exposure to e-m radiation?
14). What are the two uses of gamma rays?

Giving a big amount of points who gets it correctly and short

If I see wrong or just a added comment I will delete and report you

1) electromagnetic radiation

Radio waves, gamma-rays, visible light, and all the other parts of the electromagnetic spectrum are electromagnetic radiation. Electromagnetic radiation can be described in terms of a stream of mass-less particles, called photons, each traveling in a wave-like pattern at the speed of light.

2) In general, total internal reflection takes place at the boundary between two transparent media when a ray of light in a medium of higher index of refraction approaches the other medium at an angle of incidence greater than the critical angle. For a water-air surface the critical angle is 48.5°.

3) There are two broad classes of seismic waves: body waves and surface waves. Body waves travel within the body of Earth. They include P, or primary, waves and S, or secondary, waves

4) Gamma rays

Gamma rays have the highest energies and shortest wavelengths on the electromagnetic spectrum.

5) Electromagnetic radiation is a type of energy that is commonly known as light. Generally speaking, we say that light travels in waves, and all electromagnetic radiation travels at the same speed which is about 3.0 * 108 meters per second through a vacuum.

6) When light travels from air into water, it slows down, causing it to change direction slightly. This change of direction is called refraction. When light enters a more dense substance (higher refractive index), it 'bends' more towards the normal line.

7)

8) Ionizing Radiation. Electromagnetic waves with more energy than visible light can pack a wallop. These forms of energy are capable of altering the atomic structure of the atoms that they hit and penetrate.

9) Gamma rays have the highest energies and shortest wavelengths on the electromagnetic spectrum.

10) After talking about different cooking methods in past issues, the main characters in this issue are microwave ovens and halogen ovens (the latter one also called halogen convection ovens or turbo cookers/ovens) which employ different types of electromagnetic (EM) waves, namely microwaves and infrared waves respectively.

11) The Visible Spectrum

Visible light is the light that we can see, and thus is the only light detectable by the human eye. White light is visible light, and it contains all the colors of the rainbow, from red to violet. The range of visible wavelengths is 400 to 700 nanometers.

12) The higher frequencies of EM radiation, consisting of x-rays and gamma rays, are types of ionizing radiation. Lower frequency radiation, consisting of ultraviolet (UV), infrared (IR), microwave (MW), Radio Frequency (RF), and extremely low frequency (ELF) are types of non-ionizing radiation.

13) Exposure to very high levels of radiation, such as being close to an atomic blast, can cause acute health effects such as skin burns and acute radiation syndrome (“radiation sickness"). It can also result in long-term health effects such as cancer and cardiovascular disease.

14) Gamma rays are ionizing electromagnetic radiation, obtained by the decay of an atomic nucleus. Gamma rays are more penetrating, in matter, and can damage living cells to a great extent. Gamma rays are used in medicine (radiotherapy), industry (sterilization and disinfection) and the nuclear industry.

hope it helps.

emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50

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explanation:

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