How much force is required to keep a 2 kilogram object moving horizontally with a speed of 4 meters a second

In experiment involving a pithball electroscope, what causes the pithball to move?

There is a 30 g sample of Be-11. It has a half-life of about 14 seconds. How much will be left after 28 seconds? A. 3.75 g B. 7.5 g C. 15 g D. 30 g

A police cruiser is travelling at 24 m/s and slows down at a rate of 0.65 m/s2 until it stops. The distance traveled by the cop while slowing down is closest to: A. 0.44 km. B. 0.38 km. C. 0.42 km. D. 0.36 km. E. 4.0 km.

Moustapha jones drives east at 100km/hr for 3 hours then back west at 80km/hr for 1.5 hours. which pair of answers gives his average speed and average velocity?

Do action and reaction pairs result in equilibrium?

Technician A says that the ABS electrohydraulic unit can be bled using bleeder screws and the manual method. Technician B says that a scan tool is often required to bleed the ABS electrohydraulic unit. Which technician is correct? a.

Which changes would cause the fusion rate in the sun’s core to increase?

The descendants of a plant or animal considered as a group. A. offspring B. parents C. ancestors D. species

Which is a derived unit? A Meter B Second C Kilogram D Newton

A girl pushes a box that has a weight of 450 n up an incline. if the girl exerts a force of 150 n along the incline, what is the mechanical advantage of the incline?