A droplet of ink in an industrial ink-jet printer carries a charge of 1.6 x 10^-10 C and is deflected onto paper by a force of 3.2 x 10-4 N. Show that the strength of the electric field to produce this force is 2 million N/C.

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?

What ions are formed when hcl dissolves in water?