A rotating fan completes 1200 revolutions every minute. consider the tip of a blade, at a radius of 0.19 m. through what distance does the tip move in one revolution?
Answers
The tip of the fan moves through the outer side of the circle.
So it moves a distance of perimeter of circle in one revolution.
Perimeter of circle = 2r, where r is the radius of circle.
In this case radius of circular motion = 0.19 meter
So perimeter of circle = 2*0.19 = 0.38
= 1.194 m
So distance does the tip move in one revolution = 1.194 meter
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Answers
Answer:
a= -0.86 m/s²
The negative sign shows that ball down the ground or moving down
Explanation:
Vf² - Vo² = 2gS
where
Vf = velocity of clay as it hits the ground
Vo = initial velocity of clay = 0
g = acceleration due to gravity = 9.8 m/sec^2 (constant)
S = distance travelled by clay = 15 m
Substituting appropriate values,
Vf² - 0 = 2(9.8)(15)
Vf = 17.15 m/sec.
Formula to use is,
V - Vf = aT
where
V = velocity of clay when it stops = 0
Vf = 17.15 m/sec (as determined above)
a = acceleration
T = 20 ms
Put the values to find acceleration
a=(V-Vf)/T
a=(0-17.15)/20
a= -0.86 m/s²
The negative sign shows that ball down the ground
definition please:)
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Any star that is fusing hydrogen in its core and maintains a stable equilibrium between the inward pressure from gravity and the outward pressure from core nuclear fusion is called the main sequence star.
The main sequence is a continuous and recognisable band of stars in astronomy that may be seen on maps of stellar colour against brightness.
A star produces thermal energy in its dense core area by nuclear fusing hydrogen into helium after condensation and ignition. The star's location on the main sequence at this moment in its existence is mostly based on its mass, but also on factors like its age and chemical makeup.
Main-sequence stars' cores are in a state of hydrostatic equilibrium, where the inward pressure of gravitational collapse from the surrounding layers balances the outward heat pressure of the hot core.
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A.) the gravitational pull of the Sun
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B. positron
C. neutrino
D. helium-4
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Answer:
The answer is B i just took the test and got it correct:)
Explanation:
Answers
Amino acids are the building blocks of proteins. When amino acids combine, they form peptide bonds resulting in the formation of peptides or proteins. Proteins are the type of molecule formed from amino acids.
Amino acids are organic compounds that consist of an amino group a carboxyl group and a side chain attached to a central carbon atom.
When two or more amino acids come together, they undergo a condensation reaction, also known as a dehydration synthesis reaction. During this process, the amino group of one amino acid reacts with the carboxyl group of another amino acid, resulting in the formation of a peptide bond.
As more amino acids are added to the chain, it continues to grow, and the resulting molecule is known as a polypeptide.
Proteins are large, complex molecules that play crucial roles in various biological processes.
Therefore, amino acids combine through peptide bond formation to create polypeptides, and when polypeptides fold into a specific structure, they become proteins.
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