A box with a mass of 15.0 kg is being pushed on a level surface with a horizontally applied force. It just starts to slide when 40.0 N is applied
and will continue to slide if 35.0 Nis applied to the box. What is the
coefficient of static friction (us) of these surfaces? *

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

The image shows the positions of a car on a roller coaster track. arrange the cars in order based on their gravitational potential energy. begin with the lowest potential energy and end with the highest.

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?