A 38-kilogram child roller skates on a circular track with a radius of 24 m. Her velocity is 6.0 m/s. What centripetal force does she experience?-0.16 N
-0.38 N
-57 N
-580 N
Answers
The answer is.57N.
Centripetal force (F) is a force that makes a body move around a circular curve. The unit of force is N (N = kg * m/s²).
It can be represented as:
where:
m - mass
v - velocity
r - radius of the curve
We have:
m = 38 kg
v = 6 m/s
r = 24 m
We need centripetal force:
N = ?
If:
Then:
Therefore, centripetal force child experiences during skating on
a circular track is 57 N.In order to solve the problem presented above you will simply need to use the formula shown below. Please see attachment. Now all we have to do is simply replace the variables with the information that the problem gives us. If we do that we will get the following:
F = m*v²/r
F = 38*6²/r
F = 38*36/24
F = 57 Newtons
I hope it helps, Regards.
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C. planetary nebula stage
D. black dwarf stage
Answers
Answer: B. red giant stage
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The correct option is D.
The life cycle of a star like the sun can be divided into several stages. The specific sequence of stages depends on the mass of the star. However, for a star like the sun, the stages are as follows:
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Hence , D is the correct option
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lighter and stronger than previous models that they can sell at a higher price.
Which statement describes how a risk would be factored into a cost-benefit
analysis?
A. The cost of the materials to make the frames would be added to
potential improvements in consumer safety.
B. A reduction in employee safety would be added to the increase in
sales of the bicycle frames.
C. The ecological damage of mining the materials would be
subtracted from the profits made by selling the bicycle frames.
D. The money spent manufacturing the frames would be subtracted
from the profits made by selling the bicycle frames.
Answers
Cost-benefit analysis has been defined as the approach used to evaluate the advantages and disadvantages of the choices. The ecological damages must be subtracted from selling profits. Thus, option C is correct.
What is the cost-benefit analysis?
Cost-benefit analysis has been defined as the estimation of the cost and the profits in economical terms. It allows the determination of the monetary benefit gained by the manufacturing, production, and selling of the products.
To manufacture the bicycle frame the monetary benefit can be estimated by subtracting ecological damages for material mining from the profits earned by selling the frame of the bicycle. It gives the idea of how much it cost and benefits the maker.
Therefore, option C. (profits - ecological damage) gives a cost-benefit analysis.
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Answers
Answer:
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Answers
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D) They have characteristics similar to the elements making them up.
Answers
Answer:
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Explanation:
A polymer is a chemical molecule formed by many repeating units (monomers). A protein consists of many amino acids (monomers of proteins) joined together through peptide bonds that form a long chain, in the case of lipids, the monomers are fatty acids and glycerol and finally, in polysaccharides, simple sugars are the repeating units.
I hope you find this information useful and interesting! Good luck!
proteins, lipids, and polysaccharides are similar in the way that they are natural polymers composed of repeating monomeric units. Correct option is B.
Proteins, lipids, and polysaccharides are all biological macromolecules that share the characteristic of being natural polymers composed of repeating monomeric units.
Proteins are composed of amino acids, which are the monomeric units. Amino acids are linked together by peptide bonds to form polypeptide chains, which then fold into complex three-dimensional structures to perform various functions in cells.
Lipids, although not strictly polymers in the same way as proteins or polysaccharides, can be considered as macromolecules. They are composed of various hydrophobic molecules, such as fatty acids and glycerol. Lipids are characterized by their hydrophobic nature and are involved in functions such as energy storage, insulation, and forming cell membranes.
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