Nucleosynthesis began when and ended when a. the big bang occurred; the big crunch occurred b. nuclear reactions could first occur; matter had condensed into galaxies and stars c. the cosmic microwave background radiation formed; dark energy replaced it as the dominant energy form d. the universe had cooled enough for atoms to combine; protons and neutrons were too far apart to form nuclei

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.

answer is slate

hope this