4: which of the following is true of an object in a circular motion at a constant speed? a: the net force on the object is zero b: the object is not accelerating as the speed of the object remains the same c: the object is accelerating as the direction of the object is changing d: the object is accelerating as the velocity remains the same could it be c

Oxygen and hydrogen gas are at the same temperature t.what is the ratio of kinetic energies of oxygen molecule and hydrogen molecule if oxygen is 16 times heavier than hydrogen.

Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?

Which radioisotope is used in dating geological formations?