Answer:
Work is done by the heart on the blood during this time is 0.04 J
Explanation:
Given :
Mass of blood pumped, m = 80 g = 0.08 kg
Initial speed of the blood, u = 0 m/s
Final speed of the blood, v = 1 m/s
Initial kinetic energy of blood is determine by the relation:
![E_{1}=\frac{1}{2} m u^{2}](https://tex.z-dn.net/?f=E_%7B1%7D%3D%5Cfrac%7B1%7D%7B2%7D%20m%20u%5E%7B2%7D)
Final kinetic energy of blood is determine by the relation:
![E_{2}=\frac{1}{2} m v^{2}](https://tex.z-dn.net/?f=E_%7B2%7D%3D%5Cfrac%7B1%7D%7B2%7D%20m%20v%5E%7B2%7D)
Applying work-energy theorem,
Work done = Change in kinetic energy
W = E₂ - E₁
![W=\frac{1}{2} m (v^{2}-u^{2})](https://tex.z-dn.net/?f=W%3D%5Cfrac%7B1%7D%7B2%7D%20m%20%28v%5E%7B2%7D-u%5E%7B2%7D%29)
Substitute the suitable values in the above equation.
![W=\frac{1}{2}\times0.08\times (1^{2}-0^{2})](https://tex.z-dn.net/?f=W%3D%5Cfrac%7B1%7D%7B2%7D%5Ctimes0.08%5Ctimes%20%281%5E%7B2%7D-0%5E%7B2%7D%29)
W = 0.04 J
Answer:
The speed of light will be c=3x10^8m/s
Explanation:
This is the same as the speed of light because your speed does not affecttje speed of light so you will see the light approaching you at the same speed of light c
Shelf, slope, rise, abyssal plain is the correct order of marine provinces from the coast to the mid-ocean ridge. A shelf break marked by where increased slope angle occurs. A continental shelf is a flat zone from shore to shelf break. A continental slope is where deep ocean basins begin. The abyssal plains located in the Deep-ocean basins; extend from the base of continental rise.
The statement is constructed with the purest form of veracity, and
it is True in every respect, every jot and tittle, ever 'p' and 'q'.
Truer words are rarely if ever spoken. Verily and forsooth,
Most comets indeed come from a dark, distant, foreboding
place in the solar system, unknown until very recently, and
now referred to as the "Oört Cloud".
Answer:
2.25 %
Explanation:
65-95-99.7 is a rule to remember the precentages that lies around the mean.
at the range of mean (
) plus or minus one standard deviation (
),
at the range of mean plus or minus two standard deviation,
at the range of mean plus or minus three standard deviation,
So, note that they are asking about the probability that it is greater than 0.32, that is the mean (0.3) plus two times the standard deviation (0.1) (
)
So we know that the 95.5% is between
and
, hence approximately the 4.5% (100%-95.5%) is greater than 0.32 or less than 0.28. But half (4.5%/2=2.25%) is greater than 0.32 and the other half is less than 0.28.
So