Answer:
P = 1471500 [Pa]
Explanation:
We must remember that pressure is defined as the relationship between Force over the area.
where:
P = pressure [Pa] (units of pascals)
F = force [N] (units of Newtons)
A = area of contact = 4 [cm²]
But first we must convert from cm² to m²
A = 0.0004 [m²]
Also, the weight should be calculated as follows:
where:
m = mass = 60 [kg]
g = gravity acceleration = 9.81 [m/s²]
Now replacing:
And the pressure:
Because 1 [Pa] = 1 [N/m²]
It decreases because the water is being evaporated.
Answer:
because it weighs more than water
I believe a hypothesis is determined before experimentation begins. A hypothesis is a scientific state of prediction. It describes in concrete terms what you expect will happen in ones study. However, not all studies have hypothesis. Often times a study may be designed to be explanatory. A study may have one or more hypothesis. Hypothesis is an educated prediction that can be tested.<span />