Alinear track begins at 0 meters and has a total distance of 100 meters to the finish line. juliet starts at the 10-meter mark while practicing for a race. after running 45 meters, how far is she from the beginning of the track?

Explanation:

Juliet starts at the 10-meter mark.

Initial displacement from starting = 10 meter.

She runs 45 meters to the 100 meter line.

Displacement = 45 meters.

Final displacement from starting = Initial displacement from starting + 45

Final displacement from starting = 10 + 45

Final displacement from starting = 55

She will be 55 meter far from the beginning of the track.

c.the charges if the proton and electron and gravity

305.7

explanation:

density =m/v

density =917/3.00

density = 305.

approximately = 305.7

in four significant figures