the answer is B! it would continue to expand.....just took the test XD
Answer:
See explanation.
Explanation:
If each runner was holding the pole, the runner in the water side of the pole would probably be behind the other runner. Since running in knee deep is hard and makes you slower, the pole would be slanted.
Answer:
The mass of the fish is 18.1 kg.
Explanation:
Given;
weight of the fish, F = 108 N
extension of the spring by the given weight, x = 14 cm = 0.14 m
First, determine the elastic constant of the spring by applying Hook's law;
F = kx
where;
k is the spring constant
k = F/x
k = 108 / 0.14
k = 771.43 N/m
When the spring is stretched to 23cm, the mass of the fish is calculated as follows;
![F = mg = Kx\\\\m = \frac{Kx}{g} \\\\m = \frac{771.43\times 0.23}{9.8} \\\\m = 18.1 \ kg](https://tex.z-dn.net/?f=F%20%3D%20mg%20%3D%20Kx%5C%5C%5C%5Cm%20%3D%20%5Cfrac%7BKx%7D%7Bg%7D%20%5C%5C%5C%5Cm%20%3D%20%5Cfrac%7B771.43%5Ctimes%200.23%7D%7B9.8%7D%20%5C%5C%5C%5Cm%20%3D%2018.1%20%5C%20kg)
Therefore, the mass of the fish is 18.1 kg.
<span>So we want to know what is not influencing the phases of the Moon. What influences Moon phases are celestial bodies that are close enough to have enough gravitational force to have an influence. Those celestial bodies would be the Earth and the Sun, since moon itself cant influence itself and all other stars are too far to exert gravitational force. So the correct answer would be the Moon and the stars do NOT have an influence on the Moon phases. </span>
Answer:
Speed of the plane will be equal to 2.969 m/sec
Explanation:
Note - It is not given but we have to find the speed of the plane.
We have given radius r = ![r=490mm=490\times 10^{-3}m](https://tex.z-dn.net/?f=r%3D490mm%3D490%5Ctimes%2010%5E%7B-3%7Dm)
Angular acceleration ![a=18m/sec^2](https://tex.z-dn.net/?f=a%3D18m%2Fsec%5E2)
We have to fond the speed of the plane
We know that angular acceleration is equal to ![a=\frac{v^2}{r}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7Bv%5E2%7D%7Br%7D)
So ![18=\frac{v^2}{490\times 10^{-3}}](https://tex.z-dn.net/?f=18%3D%5Cfrac%7Bv%5E2%7D%7B490%5Ctimes%2010%5E%7B-3%7D%7D)
![v^2=8.82](https://tex.z-dn.net/?f=v%5E2%3D8.82)
v = 2.969 m/sec
So speed of the plane will be equal to 2.969 m/sec