E. what is the density in gram/ cubic centimeter units of the cubic box in part (d) if the mass is 27 grams? btw, part d is what is the volume in cubic centimeter units of a cubic box which length equals to 3cm, height equals to 3cm, and width equals to 3cm? the answer to d is 27cm to the 3rd power. i just need the answer for e ( the first question )

Density = , Volume of box =

Step-by-step explanation:

We need to find the density of cubic box in gram/ cubic centimeter units.

Density =

where ,

Mass = 27 grams

Volumes is shape of cube whose length equals to 3cm, height equals to 3cm, and width equals to 3cm.

Volume of cube = length width height

Volume = 3 33

Volume = 27

Now, we calculate density of box using above formula

Density = grams

Density = 1 gram / cubic centimeter

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.