Three charges are arranged in the following arrangement: 4 =- 42=* - - =0.y=0) =-aya) 4, - 4y = a) *) 115 pts find the electric field at a point x = 4, y = 3a). = = = =í)

Ajet plane has a sound level of 120 db at a distance of 60 m. what is the q23. sound level at a distance of 6.0 km? (60)2 (6000)? om solution 80db db, hint: 16x assume ultrasound waves travel through the body of an animal at 1540 q24. m/s. if a 30,000 hz signal were reflected off a portion of a heart which was moving toward the source at 3 m/s, what frequency signal would return to the stationary source? solution 30.117hz

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

What is required for an electric charge to flow through a wire? zero resistance in the wire a balance of electric potential high resistance in the wire a difference in electric potential