A Cepheid variable star has an apparent brightness of 85 and a period of 14.3 days. This means the star is 85 times brighter than the Sun would appear at a distance of 1 Megaparsec. About how far away is this star?

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.

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this

not too sure thinking all accelerations are pointed down

answerscientific theory;