Answer:
D. The circulatory system transports oxygen that the respiratory system brings into the body.
Explanation:
the first two answers either refer to carbon dioxide as beneficial and necessary to the body(it sometimes is but not in this case)
the answer choice c refers to oxygen being transferred directly to the heart. This is also incorrect.
the only proper answer to this question is answer choice d.
Answer:
1) joule
2) ![kgm^{2}/s^{2}](https://tex.z-dn.net/?f=kgm%5E%7B2%7D%2Fs%5E%7B2%7D)
3) ![10\%](https://tex.z-dn.net/?f=10%5C%25)
Explanation:
1) Luminosity is the <u>amount of light emitted</u> (measured in Joule) by an object in a unit of<u> time</u> (measured in seconds). Hence in SI units luminosity is expressed as joules per second (
), which is equal to Watts (
).
This amount of light emitted is also called radiated electromagnetic power, and when this is measured in relation with time, the result is also called radiant power emitted by a light-emitting object.
Therefore, if we want to calculate luminosity the Joule as a unit will be used.
2) Work
is expressed as force
multiplied by the distane
:
Where force has units of
and distance units of
.
If we input the units we will have:
This is 1Joule (
) in the SI system, which is also equal to ![1 Nm](https://tex.z-dn.net/?f=1%20Nm)
3) The formula to calculate the percent error is:
![\% error=\frac{|V_{exp}-V_{acc}|}{V_{acc}} 100\%](https://tex.z-dn.net/?f=%5C%25%20error%3D%5Cfrac%7B%7CV_%7Bexp%7D-V_%7Bacc%7D%7C%7D%7BV_%7Bacc%7D%7D%20100%5C%25)
Where:
is the experimental value
is the accepted value
![\% error=\frac{|7.34 (10)^{-11} Nm^{2}/kg^{2}-6.67 (10)^{-11} Nm^{2}/kg^{2}|}{6.67 (10)^{-11} Nm^{2}/kg^{2}} 100\%](https://tex.z-dn.net/?f=%5C%25%20error%3D%5Cfrac%7B%7C7.34%20%2810%29%5E%7B-11%7D%20Nm%5E%7B2%7D%2Fkg%5E%7B2%7D-6.67%20%2810%29%5E%7B-11%7D%20Nm%5E%7B2%7D%2Fkg%5E%7B2%7D%7C%7D%7B6.67%20%2810%29%5E%7B-11%7D%20Nm%5E%7B2%7D%2Fkg%5E%7B2%7D%7D%20100%5C%25)
This is the percent error
Answer:
because
Explanation:
Mass and velocity are both directly proportional to the momentum. If you increase either mass or velocity, the momentum of the object increases proportionally. If you double the mass or velocity you double the momentum.
Answer:
The plan would not be successful
Explanation:
Radar ranging is not suitable for this plan because of the challenges that associate with the implementation of radar ranging. The Radar is a detection system that uses radio waves to determine the range, angle, or velocity of objects. The distance of these kuiper belts to the earth is enormously large, as soon as the signal is sent, it begins to spread out and the larger the distance the more spread out the signal would have been before getting to its destination, the more the echo that is generated resulting in a very poor signal strength.
(a) The momentum of the proton is determined as 5.17 x 10⁻¹⁸ kgm/s.
(b) The speed of the proton is determined as 3.1 x 10⁹ m/s.
<h3>
Momentum of the proton</h3>
The momentum of the proton is calculated as follows;
K.E = ¹/₂mv²
where;
- m is mass of proton = 1.67 x 10⁻²⁷ kg
- v is speed of the proton = ?
<h3>Speed of the proton</h3>
v² = 2K.E/m
v² = (2 x 50 x 10⁹ x 1.602 x 10⁻¹⁹ J)/(1.67 x 10⁻²⁷)
v² = 9.6 x 10¹⁸
v = 3.1 x 10⁹ m/s
<h3>Momentum of the proton</h3>
P = mv = (1.67 x10⁻²⁷ x 3.1 x 10⁹) = 5.17 x 10⁻¹⁸ kgm/s
Learn more about momentum here: brainly.com/question/7538238
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