The formula for kinetic energy is

. Thus, the equation for velocity is

.
Answer:
This is due to variation bin air pressure at the two different altitudes, so air rushes out through the eustachian tube to hit the eardrum and back when u reach the ground
Answer:

- The new acceleration will have a value equal to gravity (9.81m/s^2) but pointing upwards.
Explanation:
The electric Force and gravitational Force are the same:


If the Electric field is doubled, the Electric Force is doubled, so its new value is twice the weight of the object. If we add this new electric force (upwards), with the weight (downwards), we have a resulting force upwards = one time the weight. in conclusion the acceleration will have a value equal to gravity but pointing upwards.
Answer: Q = 8.37×10^-9L/s
Explanation: since the depth of the surface is normal to the flow, ø = 90
Find the attached file for the solution