An apple fell 4 m from the top of the tree to the ground in 0.9 s. what was its average speed?
a. 3.6 m/s
b. 4.0 m/s
c. 4.4 m/s
d. 4.5 m/s down

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.

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.