Awide light source creates a shadow with two parts. from which part can the light source be partiallly seen?
a) the light source can be seen from the umbra
b) the light source can be seen from the penumbra
c) the light source can be seen from both parts of the shadow.
d) the light source can be seen from neither part o the shadow.

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

what is the average time it took the car to travel 0.50 meters?

⇒ 3.13 seconds