Answer:
a = 3.27 m/s²
v = 2.56 m/s
Explanation:
given,
mass A = 1 kg
mass B = 2 kg
vertical distance between them = 1 m
a = 3.27 m/s²
The speed of the system at that moment is:
v² = u² + 2×a×s
v² = 0² + 2× 3.27 × 1
v ² = 6.54
v = 2.56 m/s
True or False? Megathrust earthquakes, like one that can occur on the Cascadia subduction zone off the coast of Oregon and North
1 answer:
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Answer:
Pressure of the gas = 12669 (Pa) and height of the oil is 1,24 meters
Explanation:
First, we can use the following sketch for an easy understanding, in the attached image we can see the two pressure gauges the one with mercury to the right and the other one with oil to left. We have all the information needed in the mercury pressure gauge, so we can determine the pressure inside the vessel because the fluid is a gas it will have the same pressure distributed inside the vessel (P1).
Since P1 = Pgas, we can use the same formula, but this time we need to determine the height of the column of oil in the pressure gauge.
The result is that the height of the oil column is higher than the height of the one that uses mercury, this is due to the higher density of mercury compared to oil.
Note: the information given in the units of the fluids is not correct because the density is always expressed in units of (mass /volume)
1) Fundamental units of are
2) Fundamental units of are
Explanation:
The equation for the variable is
where we have:
measured in
measured in
measured in
measured in
We can re-write the equation as
And we notice that the units of the term on the left must be equal to the units of the term on the right.
This means that:
1) First of all, must have the same units of
. So,
However, both ft (feet) and in (inches) are not fundamental dimensions: this means that they can be expressed as meters. Therefore, the fundamental units of are
2)
The term must have the same units of
in order to be added to it. Therefore,
We also know that the units of are
, therefore
And so, the fundamental units of are
However, the Joules can be written as
Therefore
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