I’m on my roof. how much gravity would it take for my legs to break?

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

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s. what is the wavelength?