Because of their large mass and charge, alpha rays are the least penetrating and least dangerous.

Answers

Answer 1
Answer: This is true. 
Beta and Gamma radiation are the most dangerous because they can penetrate the skin, and damage the cells inside.

Alpha is the least dangerous.

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It is best to say that marine debris _______.

When a liquid is cooled, the kinetic energy if the particles A. Decrease B. Increases C. Remains the same. The force of attraction between the particles A. Decrease B. Increases C. Remains the same , the space between the particles A. Decrease B. Increases C. Remains the same

Answers

Answer:

  • (A.) Kinetic energy decreases
  • (B.) Force of attraction increases
  • (C.) Space between particles remains the same

Explanation:

Kinetic energy is the energy in motion. Cooling if liquid would cause decreased temperature and hence slow down the oscillation of the particles.

Likewise, increased heat reduces the force of attraction between said particles, which allowed for their free movement. So the cooling would have opposite effect.

Finally, the space between the particles would remain the same as it was originally, as their force of attraction is increased in the cooling process, they would take the form they are held in.

I hope this was helpful and concise?

in kilometers how much larger is the distance around the earth from east to west than the distance from north to south

Answers

The distance around the earth from east to wester than the distance from north to south is 24,859.73 kilometers. It is 67.3 kilometers apart.

What is distance ?

Distance is a measurement of how far apart two things or points are, either numerically or occasionally qualitatively. Distance can refer to a physical length in physics or to an estimate based on other factors in common usage.

The size or extent of the displacement between two points is referred to as distance. Keep in mind that the distance between two points and the distance traveled between them are not the same. The length of the entire journey taken to get from one point to another is the distance traveled.

Both of these numbers are quite close to the recognized modern estimates for the Earth's diameter and radius, which have since been determined by orbiting spacecraft and are 40,070 km and 6378 km, respectively.

Thus, The distance around the earth from east to wester than the distance from north to south is 24,859.73 kilometers.

To learn more about the distance, follow the link;

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24,859.73 miles  from east to west. the difference is 67.3 kilometers

a sample of aluminum is placed in a 25.0 ml graduated cylinder containing 10.0 ml of water the level of the water rises to 18.0 ml aluminum has a density of 2.70 g/mL what is the mass?

Answers

2.70 g/cm^2 * 8 cm^2 = 21.6 g or 0.0216 kg.

Stalactites and stalagmites are examples of _____.organic sedimentary rock
contact metamorphism
extrusive igneous rock
chemical sedimentary rock

Answers

The right option is; chemical sedimentary rock

Chemical sedimentary rocks are rocks that are formed by precipitation of minerals from water. Chemical sedimentary rocks are also called evaporates and they are usually composed of the minerals halite (calcium chloride) and gypsum (calcium sulfate). Examples of chemical sedimentary rocks include stalactites, stalagmites, rock salt, flint, and some dolomites.

Answer:

The correct answer is option D, chemical sedimentary rock

Explanation:

Both stalactites and stalagmites are called drip stone as they are formed of the dripping water consisting of minerals. Both stalactites and stalagmites hang up from the ceiling of caves. These are also refereed to as Chemical sedimentary rocks formed by precipitation. The three major processes involved in the formation of these two rocks are –  

a) Physical weathering – which disintegrates the minerals contained in the igneous, sedimentary, or metamorphic rock

b) Chemical weathering – which involves dissolution of weathered rock minerals

c) Precipitation of the dissolved minerals.  

living organisms all contain fats that are called .... protiens, lipids, carbohydrates, nucleic acids?

Answers

Living organisms all contain fats that are called lipids. Lipids are long non polar biologic molecules, formed by functional blocks called fatty acids.Lipids are responsible for the storage of energy and make up the structure of the cell membranes. Fatty acids are long chain carboxilic acids.

The answer is Lipids. Hope it helps.

What is the most abundant gas in Earth's present day atmosphere?methane
oxygen
carbon dioxide
nitrogen

Answers

nitrogen. air consists 78% of nitrogen gas

The answer is nitrogen