Pls help! What is the average speed of an airplane that travels from New York to Los Angeles, a total distance of 4800 km, in 6.0 hours? A.
800 km/hr
B.
80 km/hr
C.
0.00125 km/hr
D.
28,800 km/hr

Ineed extreme for task 2. my student number is 571721. many to whoever solves this correctly, im in debt to you.

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

Which subatomic particle has a negative charge