The waves in some amusement park wave pools are controlled by regularly spaced bursts of air. Chang-
ing the timing and strength of these air bursts also
changes the characteristics of the waves that result.
Predict List and describe four wave
characteristics. Which characteristic(s) do you
think would change if the air bursts were
stronger? Which would change if more air bursts
came in a shorter amount of time? Explain.

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

fgravity=10x10=100n case 1

fgravity=30x20=600n case 2

6 times more

grav potential energy

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y