In an inkjet printer, letters and images are created by squirting drops of ink horizontally at a sheet of paper from a rapidly moving nozzle. The pattern on the paper is controlled by an electrostatic valve that determines at each nozzle position whether ink is squirted onto the paper or not Figure 1 of 1 The ink drops have a mass m 1.00×10 kg each and leave the nozzte and travel horizontally toward the paper at velocity=15.0 m/s. The drops pass through a charging unit that gives each drop a positive charge q by causing t to lose some electrons. The drops then pass between parallel deffecting plates of length Da=2.40 cm, where there is a uniform vertical electric field with magnitude E-8.50x10 N/C. (Figure 1) Part A If a drop is to be deflected a distance d-0.270 mm by the time it reaches the end of the deflection plate, what magnitude of charge q must be given to the drop? Assume that the density of the ink drop is 1000 kg/m², and ignore the effects of gravity Express your answer numerically in coulombs.

A 47-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.2 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar.

Hi there, quick true or false question. If you double the mass of an object that is at some elevated position, above a reference level, youd double it's gravitational potential energy. True or False Thanks!!