What happens when an iron nail is exposed to air and water? (1) (a) Iron undergoes oxidation to form ferrous
(b) Air and moisture convert iron to form rust
(c) Both a and b
(d) None of the above​

tube or goog with be a great resource to with that question

a longitudinal wave moves energy that is to the direction of the wave’s movement. - true

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.