The mass of the satellite is not required when calculating the velocity of a satellite orbiting a planet.
Given that the centripetal force on the satellite is;
F = mv^2/r
Where;
F = centripetal force that keeps the satellite in its orbit
m = mass of the satellite
r = radius of the satellite
Since the force of gravity and the centripetal force both act on the satellite and they are exactly balanced;
F = GMm/r^2
Where;
G = gravitational constant
M = mass of the planet
m = mass of the satellite
r = radius of the satellite
Hence;
F = GMm/r^2 = mv^2/r
GMm/r^2 = mv^2/r
v = √GM/r
Thus, the mass of the satellite is not required when calculating the velocity of a satellite orbiting a planet.
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Answer:
i. the mass of the satellite will not be required in this calculation
Explanation:
When a satellite is orbiting a planet, it experiences two forces. The centripetal force and the gravitational force that the planet exerts on the satellite. In order for the satellite to keep in orbit, the centripetal force and the gravitational force must be equal.
The expression for the centripetal force is:
F_c = (m_s)v² / R
where
m_s is the mass of the satellite
R is the radius of the satellite's orbit
v is the velocity that the satellite travels with around the planet
The expression for the Gravitational force is:
F_g = (G M_p m_s) / R²
where
G is the universal gravitational constant
M_p is the mass of the planet
m_s is the mass of the satellite
R is the radius of the satellite's orbit
Thus, equating the two forces together, we get:
(G M_p m_s) / R² = (m_s)v² / R
We can cancel out m_s since it is a common factor on both sides.
Thus,
(G M_p) / R² = v² / R ⇒ M_p = v²R / G
Therefore, the mass of the satellite is not required to calculate the mass of the planet.
Explanation:
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Answer:
Explanation:
Isotopes are atoms of same element which have same atomic number but different mass number.
General representation of an element is given as:
where,
Z represents Atomic number
A represents Mass number
X represents the symbol of an element
General representation of an isotope of ursium with atomic number of 92 and mass umber of 238 and represented by the symbol U is:
Answer:
The number of protons in the nucleus of an atom is its atomic number, which is unique to each element.
Explanation:
Answer:
It's the same as the atomic number e.g. Oxygen has the atomic number 8 so it has 8 protons in the nucleus.
Answer:
ions and polar molecules
B: saturated
C: supersaturated
D: oversaturated
Answer: The correct answer is Option D.
Explanation:
From the given options:
Option A: Unsaturated solution is defined as the solution in which more solute particles can be dissolved in the solvent.
Option B: Saturated solution is defined as the solution in which no more solute particles can be dissolved in the solvent.
Option C: Supersaturated solution is defined as the solution in which more amount of solute particles is present than the solvent particles.
Option D: Oversaturated is defined as the to saturate the solution excessively or to provide with more amount of substance for saturation.
Hence, the correct answer is Option D.
Explanation:
Hydrogen atoms of one water molecule are attracted towards the oxygen atom of a neighboring water molecule can be termed as an intramolecular bond.
Generally, the oxygen atom is partially negatively charged, and the hydrogen atom is partially positively charged, so an arttraction occurs which forms this hydrogen bond. The attraction of the O-H bonding electrons towards the oxygen atom leaves a deficiency on the far side of the hydrogen atom relative to the oxygen atom. The result is that the attractive force between the O-H hydrogen and the O-atom of a nearby water molecule is strong.
Answer:
table sugar: water
motor oil: gasoline
rubber from tire marks: gasoline
adhesive residue from a packing tape: gasoline
Explanation:
Like dissolves like so a polar compound will dissolve in a polar solvent and a non polar compound will dissolve in a non-polar solvent. The intermolecular forces of attraction are responsible for the dissolution of substances in different solvents.
For example, polar solute exhibit hydrogen bonding and dipole interaction with polar solvents (water). Non-polar solute exhibit London dispersion forces with non-polar solvents(gasoline).