3.00x10^8 m/s to dermine how many kilometers a pulse from a lazer will travel in one hour

(3 x 10⁸ m/s) x (60 s/min) x (60 min/hr) =

(3 x 10⁸ x 60 x 60) (m-sec-min/sec-min-hr) =

(3 x 10⁸ x 3600) meters =

1.08 x 10¹² meters  or  1.08 billion kilometers

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.