A roller coaster starts from rest at the top of the first hill, and glides freely.
2. Describe how the energy in the car is transformed continually as
it glides along the track
3.Explain the state of energy in the roller coaster car at the top of
the first hill, mid-way down the first hill, at the bottom of the
first hill and mid-way up the second hill.

answer; /// the amount of material dissolved in a measure of liquid(concentration) the above statement is (true); /// good luck

what's the

ok whats the question if not i cannot you i need question and need a thing to answer

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.