<u>Answer:
</u>
Maximum height reached by the ball thrown up at 30m/s is 3.06 seconds and the height reached is 45.9 meters
<u>Explanation</u>:
Given:
Initial velocity
To find :
maximum height =?
time taken=?
Solution:
<em>Step 1:Finding the time taken to reach the highest point</em>:
The velocity of the ball at its highest ,final velocity v=0
Using the formula,
Where a is acceleration due to gravity.Its value is
Substituting the values:
<em>Step 2: finding the highest point
</em>
Using the formula
where
s is the maximum highest.
Substituting values
Result:
Thus the maximum height reached is 45.9 meters in 3.06 seconds
The Rio Grande was the major route prior to the Panama Canal.
Answer:
Depth is 7.49cm
Explanation:
Given that;
The diameter of tube is (D)=4.7cm
Area of the tube is =πD^2/4
Area is 3.142*4.7*4.7/4=17.35cm2
Mass(M)=130g
Density =1g/cm^3
Recall that Density =mass /volume
Hence volume =130/1=130cm^3
Also note
Volume=area*depth
130=17.35*depth
Depth=130/17.35=7.49cm
Given:
The balanced chemical reaction of the synthesis of phosphorus trichloride:
2P + 3Cl2 ===> 2PCl3
Initial amount of phosphorus = 15 grams
The amount of product produced from 15 grams of phosphorus:
15 grams / 31 g/mol * (2/2) = 66.46 grams PCl3
The amount of chlorine is 44.31 grams, nearest to 45 grams.
Since Jason plays a lot of sports <em>(D)</em>, there's a good chance that he has developed a greater-than-average lung capacity. This is a good thing.
