Consider earth to be stationary, and the moon as orbiting earth in a circle of radius r. if the masses of earth and the moon are me and mm, respectively, which of the following best represents the total mechanical energy of the earth-moon system? a.
b.
c.
d.
e.

option C

Explanation:

given,

mass of earth = Me

mass of the moon = Mm

radius = R

Total mechanical energy = ?

Kinetic energy of moon =

velocity of the moon is equal to

total energy =

now, putting value of in the above equation

hence, the correct answer is option C

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.