Answer:
C 340 m
Explanation:
may i be marked brainliest?
Momentum equation is
change in momentum = mass•initial velocity•final velocity
so....
p=700(15) because your initial is 30, and your final in 15, so you subtract! hope that helped!
Answer: B
Explanation:
The top number is its atomic number, also known as the number of protons in the atom.
The bottom number is the atomic mass, which is the sum of the number of protons and neutrons.
Do it as if you are writing a yes or no statement but have edge more towards the no side.
The first energy level can be occupied by a maximum of 2 electrons.
Each hydrogen atom has only one electron which occupies the first energy level.
Therefore, two hydrogen atoms will each share this one electron and form a covalent bond. By doing this (sharing electron), each of the two atoms will now be having 2 electrons (its original electron + the shared one from the other atom) and are now both stable forming a hydrogen molecule.