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ella [17]
3 years ago
6

A hot ballon with mass of 400 kilograms moves across the aky with 3,200 joules of kinetic energy. The velocity of the ballon is

Chemistry
1 answer:
zmey [24]3 years ago
8 0

Answer:

4 m/s

Explanation:

formula is v = (KE/.5m)^1/2

there is a calculator

https://www.calculatorsoup.com/calculators/physics/kinetic.php

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The wavelength of light is 310. nm; calculate the frequency.
kondor19780726 [428]
Frequency = velocity of propagation / wavelength. 

<span>For light, we assume it is moving in a vacuum, so vp is 3e8 m/s. The wavelength of 310nm is 310e-9 meters. Then we plug the numbers in, and we get (3e8 m/s) / (310e-9 m) = 967.742e12 Hz because 1/s is the same as cycles/sec, which is a Hertz.</span>
4 0
4 years ago
Read 2 more answers
Under standard conditions, which of the following is the net reaction that occurs in the cell? Cd | Cd2+ | | Cu2+ | Cu
dlinn [17]

Answer:

Cd + Cu2+ -----> Cu + Cd2+

Explanation:

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3 years ago
Compare the 13C spectra of starting material and product and explain which peaks can be used to unambiguously determine whether
fgiga [73]

Answer:

The description of the given question is summarized in the explanation section below.

Explanation:

A maximum of around 82 ppm would be found throughout the beginning material spectrum around CDCl3. This same resulting spectrum maximum of 82 ppm has been lost, as well as the section has a historic high of 215 ppm.

  • The OH summit at 82 ppm was obvious as well as a significant maximum of around 215 ppm carboxylic acid was observed.
  • That justifies the occurrence of oxidizing, C13 NMR was indeed verified as a reactive organic compound oxidized in carbonyl Ozone.
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3 years ago
Linoleic acid is a polyunsaturated fatty acid found, in ester form, in many fats and oils. Its doubly allylic hydrogens are part
nikitadnepr [17]

Answer:

True.

Explanation:

The information presented in the question above regarding linoleic acid is true. Linoleic acid is, in fact, found in many oils and fats in the ester form. In addition, linoleic acid is considered a polyunsaturated fatty acid, due to the presence of two unsaturations in its composition. Its chemical formula is CH3-(CH2)4-CH=CH-CH2-CH=CH-(CH2)7COOH and it is an essential fatty acid for the human body, as it is essential in the composition of arachidonic acid that is responsible for building muscle, managing body fat thermogenesis, and regulating core protein synthesis.

4 0
3 years ago
Which laws can be combined to form the ideal gas law?
Degger [83]
Answer: Charles's law, Avogadro's law and Boyle's law.

Explanation:

Boyle's law is: at constant temperature  PV = constant

Charles law is: at constant pressure V/T = constant

Avogadro's law is: at constant pressure ant temperature, equal volume of gases contain equal number of moles: V/n = constant

Ideal gas law: PV/nT = constant => PV = nT*constant = PV = nTR
4 0
3 years ago
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