Answer:
(a) right
(b) λ = 4.65m
(c) v = 1519m/s
(d) f = 327Hz
Explanation:
The characteristic sinusoidal pressure fluctuation equation for a wave traveling to the right is given as
P(x,t) = BkASin(kx-ωt)
Where
B = Bulk modulus
k = wave number
A = displacement amplitude
x = position on the x-axis
ω = angular frequency
t = time t
(a) the wave is travelling to the right
(b) from the given equation
ΔP(x,t) = (24.0 / r) sin(1.35r - 2050t)
1.35 compares with k
So k = 1.35rad/m
And k = 2π/ λ
λ = 2π/k = 2π/1.35 = 4.65m
(c) ω =kv
From the given equation ω = 2050 rad/s
v = ω/k = 2050/1.35 = 1519m/s
(d) f = v/λ =1519/4.65 = 327Hz
1.Vitamin C (ascorbic acid)
Chemical formula of vitamin C is C6H8O6
Two elements found in vitamin C are Carbon and Hydrogen
2. Vitamin B12 (Cyanocobalamin)
Chemical formula of vitamin B12 is C63H88CoN14O14P
Two elements found in vitamin B12 are Phosphorous and Cobalt. Of these two elements, Cobalt is a trace element and is found right at the center of this vitamin.
3. Vitamin E (alpha-Tocopherol)
Chemical formula of vitamin E is C29H50O2
Two elements found in vitamin E are Hydrogen and Oxygen.
False, farsightedness is when you cant see close
Allotropes are different forms of the same element. Different bonding arrangements between atoms result in different structures with different chemical and physical properties. Allotropes occur only with certain elements, in Groups 13 through 16 in the Periodic Table.