Question 1 of 10 Which equation correctly relates mechanical energy, thermal energy, and total
energy when there is friction present in a system?
A. ME = Etotal + Ethermal
B. ME = Ethermal - Etotal
C. ME = Etotal - Ethermal
O D. ME=
Etotal
Ethermal
SUBMIT

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

Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?

Which branches of natural science include the study of an organism that lived 10 million years ago