M hits a marble moving left at 8.0
and sticks to it. Both move left
S
S
A 0.010 kg clay ball thrown right at 16
m
at 3.2 after the collision.
S
What is the mass of the marble?

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

In a system, when potential energy decreases, then entropy also decreases. true false

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles