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NNADVOKAT [17]
3 years ago
12

I WILL DIE I HAVE A KNIFE IN MY HAND. ANSWER WITH EXPLANATION. If the sound is high pitched, then the wave's frequency would hav

e a:
A.high frequency, short wavelength


B. high frequency, long wavelength


C. low frequency, long wavelength


D. low frequency, short wavelength
Chemistry
1 answer:
enyata [817]3 years ago
3 0

Answer:

Option A - High frequency, short wavelength.

Explanation:

<em>If the sound is high then the frequency is also high but short-wavelength means lots of waves that always have a high pitch-sound and a high frequency. </em>

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Think about agriculture research which of the following statements is accurate?
irina [24]

A.genetic modification of food helps it grow more easily in certain areas

Explanation:

The statement genetic modification of food helps it grow more easily in certain areas is a form of agricultural research that is very accurate.

Genetically modifying food is common practice in order to encourage desirable and sustainable traits in plant species.

  • Drought resistant breeds can tolerate a much lower level of water in some specific areas.
  • Disease resistant breeds are more adapted to outbreaks of plant epidemics.
  • Overall, genetic modification of food helps them to grow and produce better.

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Genetic recombination brainly.com/question/12685192

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4 0
3 years ago
Density is a measure of the amount of _________ that is packed into a specific _________​
Oxana [17]

Answer:

Density is a measure of the amount of mass that is packed into a specific volume.

Explanation:

Density=mass/volume

7 0
3 years ago
When 12 grams of carbon react with 32 grams of oxygen, the compound carbon dioxide (a greenhouse gas) is formed. What is true ab
musickatia [10]

Answer:

Option C = 6 of carbon react with 16 g of oxygen.

Explanation:

In given question it is stated that 12 g  of carbon react with 32 g of oxygen to produce carbon dioxide. The other combination option c is also true because in this, the quantity of both reactant is just half from the given quantity. Which means that if 100 % product is obtained from the 12 g of carbon and 32 g of oxygen then by taking the half amount of reactant the product will be half i.e 50% .

This combination is true because the ratio of both reactant are justified.

Carbon 12g + Oxygen 32g → carbon dioxide

           C : O     1  : 2.6

Option C:

Carbon ( 12/2 =6g ) + Oxygen (32/2 = 16g) → Carbon dioxide

           C : O     1  : 2.6

6 0
3 years ago
Make a timeline graph of the develop-
Artist 52 [7]

Answer:

Date Event

442 BC Thinking about matter

Democritus, a Greek philosopher, co-originated the thought (with his teacher, Leucippus) that all matter is composed of indivisible elements.

1803 John Dalton and atoms

John Dalton, a British chemist and physicist, developed a theory that matter is simply composed of atoms of different weights and is combined in ratios by weight. Also proposed that these atoms are spherical, and are in motion.

1870 Cathode ray tube and TV (1870's)

Sir William Crookes constructed a primitive cathode ray tube, which later became the basis for television.

1896 X-rays developed

Wilhelm Rontgen discovered that certain chemicals glowed when exposed to cathode rays. These rays weren't deflected by a magnetic field produced in the cathode ray tube. He named these X-rays.

1898 Radiation, energy, and the atom

Pierre and Marie Curie theorized that radioactive particles cause atoms to break down, then releasing radiation that takes the form of energy and subatomic particles.

1898 Electrons discovered

JJ Thomson discovers the electron, using properties of cathode rays.

1900 Early quantum theory developed

Max Planck introduced what would be known as quantum theory, stating that electromagnetic energy could only be emitted in quantized form. His quanta are now called photons by physicists.

1905 Einstein and the nature of light

Albert Einstein, creates special and general theories of relativity, and hypothesizes about the particle nature of light. This was the basis of nuclear energy.

1908 Charge of an electron measured (1908-1917)

Robert Millikan measured the charge of a single electron. This is known as the elementary charge, one of the fundamental physical constants.

1909- Structure of an atom developed (1909-1911)

Ernest Rutherford known as the father of nuclear physics, developed the theory for the structure of the atom. He used a gold foil experiment, observing the scattering of alpha particles, and demonstrated for the first time the existence of the atomic nucleus.

1913 Bohr improves the atomic model

Neils Bohr developed the Bohr atomic model, with electrons travelling in orbits around the nucleus, and chemical properties being determined by how many electrons are in the outer orbits. He also integrated the Planck quantum theory, stating that when electrons change orbits they emit a quantum of discrete energy.

1926 Math describes electron changes

Erwin Shrodinger described how electrons move in wave form, and developed the Schrodinger equation which describes how the quantum state of a system changes with time.

1931 The neutron is discovered

James Chadwick discovers the neutron component of the atomic nucleus, explaining the nuclear fission of uranium 235. This also made it possible to produce elements heavier than uranium in the lab.

1938 Nuclear fission developed

Otto Hahn, regarded as the father of nuclear chemistry, discovers nuclear fission, along with Lise Meitner.

1951 Nuclear medicine and I-131

Glenn Seaborg, many discoveries of the transuranium elements, as well as many advances in nuclear medicine, including the development of I-131 for thyroid disease.

1964 Elementary particles smaller than the atom Murray Gell

Mann proposes the quark model (independently George Zweig does as well), which describes elementary particles that have no substructure (and therefore can't be split).

Explanation:

mark as brainliest plss!!!

8 0
3 years ago
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miss Akunina [59]

Answer:

i think that describes cohesion or hydrolysis

Explanation:

7 0
3 years ago
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