A 2kg object starts at rest at the top of a slope which is 10 meters high. A. What are its initial potential and kinetic energies?

B. How fast is it going when it reaches the bottom of the slope?

C. When the object reaches the bottom of the slope, it continues sliding on the ground. If there is a coefficient of kinetic friction of 0.5 between the object and the ground, What is the force of kinetic friction on the object?

D. Using the force you just calculated and what you know about work and energy, how far will the object travel before stopping (use work and energy, not kinematics)

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.

  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.

the inner core.

good luck: )

klicker