Work is defined as a Newton * meter.
In the test, it is observed that water that is not too deep If carbon dioxide levels are not low enough, blackout causes elevation.
<h3>What is research?</h3>
Unique and methodical activity performed to improve the reservoir of knowledge is known as the research. . A research project might be a continuation of previous work in the topic.
By the following way, the test is conducted;
1. The effect of the conversation test on exercise intensity prescription and monitoring in competitive athletes. The sound of your breath might assist you figure out what's wrong.
Athletes require oxygen to give energy and to eliminate carbon dioxide, which is a waste product produced when energy is produced.Because it is a reliable indicator of ventilatory efficiency in cardiac patients.
Ventilatory threshold performance is used to determine the lactate threshold. The maximal rate of oxygen consumption recorded during activity is 5.VO2 max. It is higher in trained people than in unskilled people.
Hence,in the test it is observed that water that is not too deep If carbon dioxide levels are not low enough, blackout causes elevation.
To learn more about the research, refer to the link;
brainly.com/question/18723483
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Answer:
a.18.5 m/s
b.1.98 s
Explanation:
We are given that
![\theta=35^{\circ}](https://tex.z-dn.net/?f=%5Ctheta%3D35%5E%7B%5Ccirc%7D)
a.Let
be the initial velocity of the ball.
Distance,x=30 m
Height,h=1.8 m
![v_x=v_0cos\theta=v_0cos35](https://tex.z-dn.net/?f=v_x%3Dv_0cos%5Ctheta%3Dv_0cos35)
![v_y=v_0sin\theta=v_0sin35](https://tex.z-dn.net/?f=v_y%3Dv_0sin%5Ctheta%3Dv_0sin35)
![x=v_0cos\theta\times t=v_0cos35\times t](https://tex.z-dn.net/?f=x%3Dv_0cos%5Ctheta%5Ctimes%20t%3Dv_0cos35%5Ctimes%20t)
![t=\frac{30}{v_0cos35}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B30%7D%7Bv_0cos35%7D)
![h=v_yt-\frac{1}{2}gt^2](https://tex.z-dn.net/?f=h%3Dv_yt-%5Cfrac%7B1%7D%7B2%7Dgt%5E2)
Substitute the values
![1.8=v_0sin35\frac{30}{v_0cos35}-\frac{1}{2}(9.8)(\frac{30}{v_0cso35})^2](https://tex.z-dn.net/?f=1.8%3Dv_0sin35%5Cfrac%7B30%7D%7Bv_0cos35%7D-%5Cfrac%7B1%7D%7B2%7D%289.8%29%28%5Cfrac%7B30%7D%7Bv_0cso35%7D%29%5E2)
![1.8=30tan35-\frac{6574.6}{v^2_0}](https://tex.z-dn.net/?f=1.8%3D30tan35-%5Cfrac%7B6574.6%7D%7Bv%5E2_0%7D)
![\frac{6574.6}{v^2_0}=21-1.8=19.2](https://tex.z-dn.net/?f=%5Cfrac%7B6574.6%7D%7Bv%5E2_0%7D%3D21-1.8%3D19.2)
![v^2_0=\frac{6574.6}{19.2}](https://tex.z-dn.net/?f=v%5E2_0%3D%5Cfrac%7B6574.6%7D%7B19.2%7D)
![v_0=\sqrt{\frac{6574.6}{19.2}}=18.5 m/s](https://tex.z-dn.net/?f=v_0%3D%5Csqrt%7B%5Cfrac%7B6574.6%7D%7B19.2%7D%7D%3D18.5%20m%2Fs)
Initial velocity of the ball=18.5 m/s
b.Substitute the value then we get
![t=\frac{30}{18.5cos35}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B30%7D%7B18.5cos35%7D)
t=1.98 s
Hence, the time for the ball to reach the target=1.98 s
The correct option is (B) <span>Aluminum is a metal and is shiny, malleable, ductile, conducts heat and electricity, forms basic oxides, and forms cations in aqueous solution.
Since Aluminium is in group 13, and all the elements in group 13 are either metals or metalloids(Boron). Hence we are left with option (B) and (D). Boron is the only metalloid in group 13 and aluminium is a metal(not a metalloid); therefore, we are left with only one option which is Option (B). And Aluminium is </span>shiny, malleable, ductile, conducts heat and electricity, forms basic oxides, and forms cations in aqueous solution.<span>
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