Waves require a medium in order for energy to be transferred. waves can either travel through a medium or through empty space. select one: a. mechanical; electromagnetic b. electromagnetic; compressional c. electromagnetic; mechanical d. compressional; mechanical

a. Mechanical; Electromagnetic

Explanation:

__Mechanical waves require a medium in order for energy to be transferred. _Electromagnetic waves can either travel through a medium or through empty space.

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6

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.