The greatest increase in the inertia of an object would be produced by increasing the
(1)mass of the object from 1.0 kg to 2.0 kg
(2)net force applied to the object from 1.0 n to 2.0 n
(3)time that a net force is applied to the object from 1.0 s to 2.0 s
(4)speed of the object from 1.0 m/s to 2.0 m/s

An air bubble of volume 20 cm³ is at the bottom of a lake 40 m deep, where the temperature is 4.0°c. the bubble rises to the surface, which is at a temperature of 20°c.take the temperature of the bubble’s air to be the same as that of the surrounding water. just as the bubble reaches the surface, what is its volume?

Aquarterback pedals 3.3meters southward and then run 5.7meters northward. whats the distance ? and whats the displacement?

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?