A 38-kilogram child roller skates on a circular track with a radius of 24 m. Her velocity is 6.0 m/s. What centripetal force does she experience? 580 N
0.16 N
57 N
0.38 N

Which is true of a liquid? it has a definite volume but not a definite mass.it has a definite mass but not a definite volume.it has a definite volume but not a definite shape.it has a definite shape but not a definite volume.

The molecular weight of carbon dioxide, co2, is 44.00 amu, and the molecular weight of nitrous dioxide, no2, is 46.01 amu, so no2 diffuses co2

Can you guys answer these questions i need it before 1: 00pm