Answer:
2 sec
Explanation
travel speed is = 10 m/sec
so for 20 meter = 20/10 = 2 sec
Answer:
Explanation:
Electromagnetic waves all travel at the speed of light when in vacuum, and essentially this same speed in normal air. Since wave speed is product of frequency and wavelength, c = f λ and λ = c/f = (3.00 x 108 m/s) / (7.5 x 1014 Hz) = 4.00 x 10-7 m = 400 x 10-9 m = 400 nm.
Minerals are identified according to their properties. One of these properties is their breaking tendency: <em>cleavage</em><em> or </em><em>fracture</em>.<em> Cleavage: Calcite, mica, muscovita, pyroxene. Fracture: Quartz, Asbestos, Limestone.</em>
<u><em>Note</em></u><em>: Since I do not know which your 10 minerals are, I will provide examples of each type according to the breaking tendency.</em>
Many properties of minerals are used to identify them, such as <em>color, density, hardness,</em> among others. In this case, we are talking about their <u>breaking tendency.</u>
<h3 /><h3>How do minerals break?</h3><h3 />
- Minerals can cleave or fracture.
- A type of mineral breaks always in the same, and this is why the breaking tendency is useful to identify them.
<h3 />
<u>- Cleavage</u>
- The mineral breaks in flat smooth planes.
- Cleavage direction and smoothness of surfaces are significant when identifying.
<u>- Fracture</u>
- The mineral break in irregular planes.
- In these minerals, there is no particular breaking direction.
<h2 /><h3>Examples</h3>
<u>- Cleavage</u>
<u>- Fracture</u>
You can learn more about fracture and cleavage at
brainly.com/question/22061284
brainly.com/question/2311110
Answer;
-Nuclei acid
Explanation;
-Nucleic acids are molecules that allow organisms to transfer genetic information from one generation to the next. These macromolecules store the genetic information that determines traits and makes protein synthesis possible.
-Nucleic acids include DNA and RNA. These molecules are composed of long strands of nucleotides. Nucleotides are composed of a nitrogenous base, a five-carbon sugar, and a phosphate group.
Cells, metabolism, reproduction, homeostasis, heredity, etc.