Answer:
The Answer is C. the student changed too many variables.
Explanation:
For the quiz in K12
The pressure on the diver is given by:
where F is the force exerted by the water on the diver, while A is the area of the diver.
In this problem, we know the pressure: 
, and the area of the diver, 
, therefore we can rearrange the initial equation to find the force on the diver:
We know that tangential acceleration is related with radius and angular acceleration according the following equation:
at = r * aa
where at is tangential acceleration (in m/s2), r is radius (in m) aa is angular acceleration (in rad/s2)
So the radius is r = d/2 = 1.2/2 = 0.6 m
Then at = 0.6 * 5 = 3 m/s2
Tangential acceleration of a point on the flywheel rim is 3 m/s2
Answer: pressure and volume
Explanation:
Boyle's law states that the volume of a fixed mass of gas is inversely proportional to the pressure of the gas provided temperature is kept constant.
Mathematically, Boyle's law can be explained as: PV = k,
where P is pressure
V is volume, and
k is a constant.
So, increase in the pressure of a gas leads to decrease in its volume and vice versa.
B: gravity is absent in space
