Apoint charge q1=15.00μc is held fixed in space. from a horizontal distance of 6.00 cm , a small sphere with mass 4.00×10−3kg and charge q2=+2.00μc is fired toward the fixed charge with an initial speed of 41.0 m/s . gravity can be neglected.
what is the acceleration of the sphere at the instant when its speed is 26.0 m/s ?

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

Which situation will have the highest resistance? a.long wire and high temperatureb.short wire and high temperaturec.long wire and cold temperaturedshort wire and low temperature

Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?