10 POINTS !!! Why is it risky to build something whose natural frequency can be matched byexternal vibrations?

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Answer 1
Answer:

It is risky to build something whose natural frequency is matched with external vibrations because of  ;  The effect of resonance

When an object constructed has a natural frequency which is equal to the frequency of a nearby external vibration, the amplitude of the vibration of the object will increase due to the resonance effect which occurs because the external frequency matches up with the natural frequency of the constructed object.

The negative effect of resonance is the increase in the amplitude of the vibration of the object which might lead to the partial or complete collapse of the constructed object.

Hence we can conclude that It is risky to build something whose naturalfrequency is matched with external vibrations because of  ;  The effect of resonance

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Answer 2
Answer:

Answer:Most objects have at least one natural frequency of vibration. If a nearby object vibrates at the same frequency, it can cause resonance. Resonance is an increase in amplitude of a vibration that occurs when external vibrations match an object's natural frequency.

Explanation:


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One molecule of glucose is recycled into ___ molecules of carbon dioxide during cellular respiration.(1 point)2
12
1
6

Answers

During cellular respiration, one molecule of glucose is recycled into 6 molecules of carbon dioxide.

Cellular respiration refers to series of metabolic reactions that typically occur in living cells, in order to produce energy in the form of adenosine triphosphate (ATP).

Generally, the whole metabolic process involved in cellular respiration can be represented by using a single chemical equation with the following substances;

  • Glucose.
  • Oxygen.
  • Carbon dioxide.
  • Water.
  • Adenosine triphosphate (ATP).

          Glucose + Oxygen ---> Carbon \;dioxide + Water + ATP

In conclusion, a molecule of glucose is recycled into 6 molecules of carbon dioxide during cellular respiration.

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Answer:

I think it's 6

Explanation:

Elk with large antlers are able to fight off other males and will dominate The herb are​

Answers

Answer: disruptive

Explanation:

What is the comet's tail made of?A. flames burning on the comet
B. light reflecting off of vaporizing ice and dust
C. clouds from Earth that the comet is passing through
D. rays of light shining from the comet

Answers

It is B. The comets tail is made up of ice and dust

For the following biomolecular interactions, choose the main weak force interactions that mediates them. Interaction between hydrophobic (nonpolar) amino acid side chains van der Waals interaction
Repulsion between negatively charged backbone of DNA double helix van der Waals interaction
Interaction between water and carbonyl oxygen of guanine hydrogen bond

Answers

Answer:

Interaction between hydrophobic (nonpolar) amino acid side chains is due to hydrophobic interactions.

Repulsion between negatively charged backbone of DNA double helix is due to electrostatic repulsion forces.

Interaction between water and carbonyl oxygen of guanine is due hydrogen bonding

Explanation:

The hydrophobic effect refers to the tendency of non-polar substances forms aggregates in an aqueous solutions in order to avoid interactions with water molecules. This results in a favorable entropy increase.

For non-polar amino acids, hydrophobic interactions are important in stabilizing their structure wherein they are densely packed within the core of a protein while those with with polar groups are found in the exterior.

The phosphate backbone of DNA is negatively charged. Since like charges repel, therefore, electrostatic repulsion forces of the ions are responsible the repulsion of the backbone DNA double helix.

Hydrogen bonds are formed between electronegative oxygen atoms and hydrogen atoms of neighboring molecules due to the partial negative and positive charges on each of the atoms.

This hydrogen bonding is responsible for the interaction between water and carbonyl oxygen of guanine as the hydrogen atoms of the water molecules are attracted to the oxygen atoms of the guanine molecules due to the partial charges on each of the atoms.

what do you think the rock in Earth’s mantle is like? Is the mantle made of hard, solid rock or soft, solid rock? Explain your ideas.

Answers

Mantle is a layer on planetary body which is made up of minerals. Mantle is solid as it is made up of heavy metals and solid rocks which makes it rigid.

What is Mantle?

A mantle is a layer inside a planetary body bounded by a core and on the above by a crust. Mantle is made up of rock or ices, and is generally the largest and most massive layer of any planetary body. Mantles are on the planetary bodies that have undergone differentiation by density.

The mantle is composed primarily of heavy metals, such as iron, nickel, and others. The state of the mantle was described as plastic. Many divide the mantle into further such as  the asthenosphere and lithosphere.

Mantle rocks are soft and able to move over the course of millions of years at great depth and pressure. The transfer of heat and material in the mantle helps to determine the landscape of the planet.

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Answer:

If the mantle is made out of soft rock, then I think it would melt due to the heat, but if it was hard, it would just burn, so I firmly believe the rock is hard.

Explanation:

What are two main abiotic factors that affect organisms in marine ecosystems? A. Oxygen level and water temperature B. Predators and competition C. Salinity and water temperature D. Predators and food availability

Answers

Answer:

dear user the answer is option A.oxygen level and water temperature and C.salinity and water temperature.

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Answer:

It would be A

Explanation:

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