HEELP please i dont under stand
2 answers:
You might be interested in
Answer: 21.6 m
Step-by-step explanation:
Given
A football field measures
If a football field similar in shape to a full size has a length
The ratio of the length of the original to the small field is the same
Assume the width of the small field is w
Thus, the width of the field is 21.6 m
Answer:
a)
b) 54
Step-by-step explanation:
a)
If one quantity, A, is jointly proportional to other 2 quantities (B & C), we can write proportionality equation as:
Where
k is the proportionality constant
Now, for this problem, P is jointly proportional to A and CUBE OF V, so we can write:
b)
Now velocity, V, is triples, which means it becomes 3V
Also, cross sectional area, A, is doubled, which means it becomes 2A
Let's put these into formula and see the difference:
So, power is multiplied by a factor of 54. Power becomes 54 times if Area is doubled and velocity is tripled ( as seen ).