A box has the weight of 120N and the bottom of the box is 12 cm² what is the pressure the box exerts on the floor

Given parameters

Weight of the box = 120N

Area of the box = 12cm^2

Unknown

Pressure of the box on the floor = ?

Solution

Pressure is the fore exerted by a body per uint area

Pressure = force/area

We need to convert the area into m^2 from cm^2

10000cm^2 = 1m^2

12cm^2 = 12/1000 = 0.0012m^2

Pressure = 120/0.0012 = 100000N/m^2

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.