The average density of the Sun is on the order 10³ kg/m³. (a) Estimate the density of the Moon (in kg/m3). kg/m3
(b) Estimate the diameter of the Moon (in m). (Use your estimate from part (a).) m
(c) Given that the Moon subtends at an angle of about half a degree in the sky, estimate its distance from Earth (in m).

nah.   i'm just sleepy.

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.