If a 340 n girl sits on a seesaw and is lifted 1.4 m in 1.6 s, how much work was done by the child on the other side?

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

What happens when the vapor pressure of a liquid is equal to the external pressure?

7types of electromagnetic waves from lowest to highest frequency