Observations of spiral galaxy show a major axis of 1.5x105 ly and a minor axis equal to 80% of the major axis. if the radial velocity of a gas cloud located in the spiral arms is calculated at 156 km/s, what is the true rotational velocity of the cloud?

magnified images possible images can be real = projected onto a screen

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.