How to rearrange the formula f = ma and solve for m

An object moves uniformly around a circular path of radius 23.5 cm, making one complete revolution every 1.95 s.

A distance of 1.0 meter separates the centers of two small charged spheres. The spheres exert gravitational force F g and electrostatic force Fe on each other. If the distance between the spheres' centers is increased to 3.

Approximately how much energy is contained in 1 g of matter? A. 3 * 1013 J B. 9 * 1013 J C. 3 * 1016 J D. 9 * 1016 J

What is a car's acceleration if it increases its speed from 5 m/s to 20 m/s in 3 s? a:5 m/s2 b:15 m/s2 c:-15 m/s2 d:10 m/s2

A current of 4.7A is drawn by a laptop with a power output of 90W. What size voltage should the charger for the laptop provide?

How would you calculate power if work is not done?

Equipotential surface A has a potential of 5650 V, while equipotential surface B has a potential of 7850 V. A particle has a mass of 5.40 10-2 kg and a charge of 5.10 10-5 C. The particle has a speed of 2.00 m/s on surface A.

Scientists develop theories to explain natural events. What causes scientists to reject even long-held theories and replace them with newer theories?

A car traveling at 40 m/s starts to decelerate steadily. It comes to a complete stop in 5 seconds. What is its acceleration? m/s2

The majority of pelagic sediments are of which type? A. Terrigenous B. Biogenous C. Hydrogenous D. Cosmogenous