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damaskus [11]
3 years ago
8

What is a common ancestor?

Chemistry
1 answer:
Dominik [7]3 years ago
4 0

Answer:

In biology and genealogy, the most recent common ancestor (MRCA, also last common ancestor (LCA), or concestor) of any set of organisms is the most recent individual from which all the organisms are directly descended.

Explanation:

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A proton in a linear accelerator has a de Broglie wavelength of 132 pm. What is the speed of the wavelength?
kherson [118]

Answer:

The speed of wavelength is 3.0 ×10³ m/s.

Explanation:

Given data:

De Broglie wavelength = 132 pm (132×10⁻¹² m)

Speed of wavelength = ?

Solution:

Formula:

λ = h/mv

λ = wavelength

h = planck's constant

m = mass of proton

v = speed

now we will put the values in formula.

132×10⁻¹² m = 6.63 ×10⁻³⁴ j.s / 1.67 ×10⁻²⁷ kg × v

v =  6.63 ×10⁻³⁴ j.s / 1.67 ×10⁻²⁷ kg × 132×10⁻¹² m

j = kg m²/s²

v = 6.63 ×10⁻³⁴ kg m²/s / 1.67 ×10⁻²⁷ kg × 132×10⁻¹² m

v = 6.63 ×10⁻³⁴ kg m²/s / 220.44 ×10⁻³⁹ kg.m

v = 0.03×10⁵ m/s

v = 3.0 ×10³ m/s

The speed of wavelength is 3.0 ×10³ m/s.

3 0
4 years ago
Sucrose is an organic compound made by plants for quick energy. What type of organic compound is sucrose?
ANEK [815]

Answer:

2-carbohydrate

Explanation:

Sucrose belongs to the carbohydrate family. It is a disaccharide which is derived from the condensation of glucose and fructose.

  • In the body, they are sources of energy for living processes.
  • Upon hydrolysis such disaccharide produces tow monosaccharide units.
  • Food substances that are energy rich will contain some of these organic molecules.
6 0
3 years ago
Read 2 more answers
Which of these formulas is the formula font the base calcium hydroxide
zhenek [66]
Ca(OH)2 is the answer for plato
4 0
4 years ago
The vertical columns on the periodic table are called groups, how many groups are there on the periodic table?
Kitty [74]
8 groups, 1 to 7 and most people call group 8 group 0 because the noble gases in group 0 have the outer electron shell full, so for example argon has 18 electrons, so it’s structure is 2.8.8 with its outer shell full. Also the number of the last shell defies what group it’s in, for example sodium is in group 1 so it’s structure is 2.8.1. Hope this helps.
5 0
4 years ago
What data can be used to make a model of food?
drek231 [11]

Answer: the density of the object / the mass it takes to stand up.

Explanation:

7 0
3 years ago
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