Answer
given,
Length of the string, L = 2 m
speed of the wave , v = 50 m/s
string is stretched between two string
For the waves the nodes must be between the strings
the wavelength is given by
where n is the number of antinodes; n = 1,2,3,...
the frequency expression is given by
now, wavelength calculation
n = 1
λ₁ = 4 m
n = 2
λ₂ = 2 m
n =3
λ₃ = 1.333 m
now, frequency calculation
n = 1
f₁ = 12.5 Hz
n = 2
f₂= 25 Hz
n = 3
f₃ = 37.5 Hz
Answer:
Option C: The solution begins to turn blue
Explanation:
When a copper wire is placed in a beaker containing a solution of silver nitrate(AgNO3), the copper (Cu) will reduce the positive silver ions (Ag+) to metallic silver (Ag). In this same process, Copper (Cu) is oxidized to produce Copper II ions (Cu2+).
The reaction will continue to progress and silver (Ag) crystals will begin to form on the Copper (Cu) wire and thus, we will observe that the solution becomes blue as a result of the formation of copper II (Cu2+) ions.
This is a single replacement reaction.
The type of current produced by a battery is direct current. C.
Answer:
an apple falling off a tree
Explanation:
Celsius is the one that is most used around the world