The buoyant force is equal to the weight of the volume of fluid displaced by the solid immersed into it, and it is equal to:
where
is the density of the fluid
is the volume of the part of the solid immersed in the fluid
g is the gravitational acceleration
We see that the greater the density of the fluid, the greater the buoyant force that pushes the object upward. When the object floats in the fluid, the buoyant force is equal to the weight of the object, mg:
(1)
and since the mass of the solid is equal to the product between its density and its volume:
we can rewrite (1) as
where
is the density of the object and
is its total volume. So the fraction of the object immersed in the fluid is
During the course of trajectory, the horizontal component of the velocity is <u>constant</u>
Answer:
C = Q / V
Q = C * V = 2.5 F * 3 V = 7.5 Coulombs (assuming the batteries are in series)
N e = Q where N is the number of electrons and e the electronic charge
N = 7.5 / (1.60E-19) = 4.7E19 electrons
or 4.7 * 10^19 electrons
Answer:
447 K
Explanation:
25 C = 25 + 273 = 298 K
Assuming ideal gas, we can apply the ideal gas law
Since pressure is tripled, then . Volume is halved, then
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