A 50-ω resistor is connected to a 9.0 V battery. How much thermal energy is produced in 7.5 minutes? Question 25 options:

1.2 102 J

1.3 103J

3.0 102 J

7.3 102 J

Occurs when an energy source transfers heat directly to another subject space; an example would be an object becoming warm by sitting in the sunshine

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 voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.