Answer:
Re=2094,76
Explanation:
For a fluid that circulates inside a straight circular pipe, the Reynolds number is given by:
where (using the international measurement system):
- ρ: density of the fluid [kg/m3]
- v: velocity of the fluid [m/s]
- D: diameter of the pipe through which the fluid circulates [m]
- μ: dynamic viscosity [Pa.s]
To solve the probelm, we just need to replace our data using <u>THE CORRECT UNITS</u> in the Reynolds number equation. So we have:
ρ=1051 kg/m3,
v=34,3 cm/s=0,343 m/s
D=2,15 cm = 0,0215 m
μ = 3,7 cp * 10^-3 Pa.s/1 cp = 3,7*10^-3 Pa.s
Replacing in the main equation:
So the Reynolds number is 2094,76 (note that the Reynolds number is a dimensionless quantity).
Potential energy is stored and can be converted into kinetic energy and often is related to some attractive or pushing forces.. There are various forms of potential energy like potentially electrical, gravitational, magnetic, chemical and elastic energy.
- The mechanical potential energy that is contained in a material or physical system configuration is basically Elastic energy, as it is exposed to elastic deformation by the work done on it. Happens when items like rubber are impermanently compressed, stretched or typically deformed.
- The gravitational potential at a position is equivalent to the work per unit mass required to move an entity from a defined reference position to that point. For an instance, a pen that is held above a table has more gravitational potential than a pen which resides on a table. Mechanical energy minus kinetic energy is gravitational potential energy.
- The potential energy that arises from conservative Coulomb forces is electric or electrostatic in nature, and has been identified inside a given system with the configuration of a specific set of point charges.
- The chemical potential of a species is potential that can be consumed or emitted as a due to a change in the particle number of the species involved, like in a chemical reaction or transition phase.
- An object's energy which is capable of doing work because of its location in a magnetic field is called magnetic potential energy.
Let the basis for the calculation of the molar mass of the mellaprotein be 1 mole. If x is the mass of 1 mole of the substance then,
Each of the mole of iron has a mass of 55.845 g/mol.
(4 mols of Fe)(55.845 g/ mol) = 223.38 grams
This mass is 0.60% of the total mass of the mellaprotein.
x = (223.38 grams) / (0.60/100) = 37230 g
Answer: 37230 grams
The question is incomplete. Here is the full version
Select the substance that has the higher boiling point. Select the substance that has the higher boiling point. a)C3H8 b)CH3OH c)CH3OCH3
Answer:
b)CH3OH
Explanation:
a)C3H8 The dominant intemolecular force here are London dispersion forces.
Dipole-dipole forces cancel out because the molecule is symmetric
b)CH3OH - The dominant intermolecular force is hydrogen bonding
c)CH3OCH3 - The dominant intemolecular force here are London
dispersion forces. Dipole-dipole forces cancel out because
the molecule is symmetric
Answer:
B Anyone can make a claim, but a scientific claim is backed by experimental evidence.
Explanation:
