The energy transfer diagram represents the energy of a light bulb. how much electrical energy is involved in this transformation? 60 j 80 j 100 j 120 j

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

Which of the following is the largest disadvantage of about half of the electricity in the united states comes from burning

Wich of yhe following is true a mass drpendent on gravity and weight is dependent on gravity b mass is not dependent on gravity and weight is dependent on gravity c mass is not dependent on gravity and wight is dependent on gravity d mass is dependent on gravity and weight is not dependent on gravity