Car has a mass of 710 kg. it starts from rest and tevels 40.0 m in 3.0 s. the car is uniformly accelarting. what is the net force?

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

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 occurs during a combustion reaction