Janice has just measured the density of an object. which value is possible? (density: d = )

–1 g/cm3
4 m/s
–3 m/s
6 g/cm3

Explanation:

as we know that density is the ratio of mass and volume of the object

here we know that mass as well as volume both are always positive so the ratio of both can not be negative.

so we know that mass is measured in gram and volume is measured in cubic cm

so the density is measured in

so the correct answer must be positive and in terms of above units

so we have

d.7.5cm is your answer

a

explanation:

no diagram was provided, but i'm guessing it's the one i've attached to my answer.

here, a mechanical force turns the rod.   this generates an electric current in the coil, which powers the bulb.