Answer:
see below
Explanation:
First, the obvious, as you press the gas pedal harder the acceleration goes up as well. Conversely, is you do not press the pedal, you will not accelerate. This determines that is I press the gas pedal, it will CAUSE the car to accelerate. This proves causation.
Now, correlation. The definition of correlation in statistics is any statistical relationship between two random variables or data. This simply means that these two events are connected to one another. A POSITIVE correlation is when two correlated events move in the same direction as one another. I have added a graph to help visualize this. In this problem as the gas is pressed harder, the acceleration increases. If the pressure on the pedal was decreased, then the acceleration also decreases. If the pressure on the pedal is constant, the the acceleration is constant.
I hope this helps!
Nitrogen and carbon dioxide
British realized their northern strategy had failed
Answer:
first one i think is this. work = 1/2 kx^2 = 1/2 Fx
2nd, is 0.08 J
Explanation:
EE = ½ kx²
EE = ½ (400 N/m) (0.02 m) ²
EE = 0.08.
THIRD, Velocity of the stone is 4 m/s when it leaves catapult.
Answer:
Part a)
![F_n = 306 N](https://tex.z-dn.net/?f=F_n%20%3D%20306%20N)
Part B)
![v = 12.1 m/s](https://tex.z-dn.net/?f=v%20%3D%2012.1%20m%2Fs)
Explanation:
Part A)
At the top of the hump the force on the rider is
1) Normal force
2) weight
so here we know that
![mg - F_n = \frac{mv^2}{R}](https://tex.z-dn.net/?f=mg%20-%20F_n%20%3D%20%5Cfrac%7Bmv%5E2%7D%7BR%7D)
![F_n = mg - \frac{mv^2}{R}](https://tex.z-dn.net/?f=F_n%20%3D%20mg%20-%20%5Cfrac%7Bmv%5E2%7D%7BR%7D)
![F_n = (100)(9.81) - \frac{100(9^2)}{12}](https://tex.z-dn.net/?f=F_n%20%3D%20%28100%29%289.81%29%20-%20%5Cfrac%7B100%289%5E2%29%7D%7B12%7D)
![F_n = 306 N](https://tex.z-dn.net/?f=F_n%20%3D%20306%20N)
Part B)
At the top of the loop we will have
![F_n + mg = \frac{mv^2}{R}](https://tex.z-dn.net/?f=F_n%20%2B%20mg%20%3D%20%5Cfrac%7Bmv%5E2%7D%7BR%7D)
in order to remain in contact the normal force must be just greater than zero
so we will have
![mg = \frac{mv^2}{R}](https://tex.z-dn.net/?f=mg%20%3D%20%5Cfrac%7Bmv%5E2%7D%7BR%7D)
![v = \sqrt{Rg}](https://tex.z-dn.net/?f=v%20%3D%20%5Csqrt%7BRg%7D)
![v = \sqrt{15\times 9.81}](https://tex.z-dn.net/?f=v%20%3D%20%5Csqrt%7B15%5Ctimes%209.81%7D)
![v = 12.1 m/s](https://tex.z-dn.net/?f=v%20%3D%2012.1%20m%2Fs)