1. GN-z11 is the most distant galaxy we have observed, its distance from us is 9.8 Giga parsecs (Giga = 109). The parsec (symbol: pc) is a unit of
length used to measure large distances to astronomical objects outside
the Solar System.
If 1 pc = 3.26 light years (ly), and 1 ly = 9.45x1015 m.
a) How far is GN-z11 in ly?

Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

Which symbol in the first law of thermodynamics represents the sum of the chemical and thermal energy stored in atoms and molecules? a. q b. w c. v d. u

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above