12. A student built a circuit allowing the light bulbs to light the, buzzers to make sound and the monitors to turn. which two switches can be open and still allow all of the parts to work?

F. Switches 1 and 3
G. Switches 1 and 4
H. Switches 2 and 3
J. Switches 3 and 4 ​

What are the applications of electromagnetic waves

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final