Question 7 The water temperature in the ocean varies inversely with the depth of the water. The deeper a person
dives, the colder the water becomes. At a depth of 1,100 meters, the water temperature is 4 Celsius,
What is the water temperature at a depth of 800 meters?
Find the constant of variation k.
ka
Using the k from above find the water temperature in degrees Celsius at a depth of 800 meters.
Celsius. (If needed, round answer to 2 decimal places.)

Pe = 1/2k(x)^2  and .05n/m = .05x10^-9m = x 

  concave means having an outline or surface that curves inward like the interior of a circle or sphere. so the mirror curves inward.

Since you have not included the experiment situation and the data, of course, i can not give you specific details about it. but i can you with this question.1) i will assume that the motion is projectile (parabolic) motion.2) yes, the horizontal distance depends on the horizontal velocity as, naming vx the horizontal velocity and t the time, it is: x = vx × t3) now, observe that the flight time depends on the vertical velocity as, naming voy the initial vertical velocity, t the time and y the vertical distance before reaching the ground: y = yo + voy×t - gt² / 2.the higher the initial vertical velocity (voy) the longer the object will be flying and so t will be higher in the equation for the horizontal distance.that explains the relationship between the horizontal distance and the horizontal velocity.