If a 4 kg ball is dropped from rest and falls without air resistance, what is its speed after 0.5 seconds?

Apair of 10μf capacitors in a high-power laser are charged to 1.7 kv.a. what charge is stored in each capacitor? b. how much energy is stored in each capacitor?

An ionic compound can conduct electricity when a it is dissolved in water b its crystals are ground into powder c it is in solid form d it is heated to just below its melting point

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?