Apenny rides on top of a piston as it undergoes vertical simple harmonic motion with an amplitude of 4.0cm. if the frequency is low, the penny rides up and down without difficulty. if the frequency is steadily increased, there comes a point at which the penny leaves the surface.

1) at what point in the cycle does the penny first lose contact with the piston? (answer choices: )
a. midpoint moving up
b. midpoint losing down
c. highest point
d. lowest point

2) what is the maximum frequency for which the penny just barely remains in place for the full cycle?

1/0.14nm = 10^10/1.4 a lot

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!

answer: 31, 5556. 952 seconds