The frequency of an oscillation is equal to the reciprocal of the period:
where
f is the frequency
T is the period
In our problem, the period is T=8.01 s, therefore the corresponding frequency is
You will see some thing pitch black pulling you. you will feel an immense pull or attraction while going rapidly inside the black hole.
The concept required to solve this problem is hydrostatic pressure. From the theory and assuming that the density of water on that planet is equal to that of the earth 
we can mathematically define the pressure as
Where,
= Density
h = Height
g = Gravitational acceleration
Rearranging the equation based on gravity
The mathematical problem gives us values such as:
Replacing we have,
Therefore the gravitational acceleration on the planet's surface is 
Answer:
17.92 Ω
Explanation:
R₀ = Initial resistance of the aluminum wire at 30.0°C = 7.00 Ω
R = resistance of the aluminum wire at 430.0°C = ?
α = temperature coefficient of resistivity for aluminum = 3.90 x 10⁻³ °C⁻¹
ΔT = Change in temperature = 430 - 30 = 400 °C
Resistance of the wire is given as
R = R₀ (1 + α ΔT)
R = (7) (1 + (3.90 x 10⁻³) (400))
R = 17.92 Ω
A compound is a combination of molecules. Molecules and formula units are made of two or more different types of atoms either ionically or covalently bonded.
Compounds are made with chemical bonds. can only separated by a chemical ways.
Mixtures are two or more types of elements that are NOT chemically bonded. and we can separated by a physical ways.
