Abox is 4 m in the air and has 120 j of potential energy. what is the box's mass

Mass of the box is 3.06 kg

Explanation:

Potential energy (that depends on gravity) is the type of energy which is stored that relies on the general position of different parts of a body.  It is a property of a framework and not of an individual body or molecule; the framework made out of the Earth and the raised ball.

P.E = m.g.h                       Equation(1)

as we have to find the mass of the box then the formula for the mass will become

m=P.E/g(h)                      Equation(2)

as we know

P.E= 120J

h=4m

g=9.8m/s  

g is the gravitational acceleration

putting values in the equation(2)  

m = 120/9.8(4)

    = 120/39.2                    

    = 3.06 kg

mass of the box is 3.06 kg

they are non-matter

explanation:

they are non-matter. basically, any type of energy or any abstract concept is an example of something that does not matter. other examples include dreams, magnetism, radio, and hate

vapour or gas assuming atmospheriv pressure