Answer:
ν = 1483.939 m/s
Explanation:
Wave propagation speed (ν):
∴ Wavelength ( λ ) = 4.25 m
∴ Period ( T ) = 1 / f
∴ frequency ( f ) = 349.2 Hz ( s-1 )
⇒ T = 1 / 349.2 s-1
⇒ T = 2.864 E-3 s
⇒ ν = (4.25 m) / (2.864 E-3 s)
⇒ ν = 1483.939 m/s
Answer:
If enough thermal energy is added to a liquid lets say cold it will freeze turning it into a solid. they same for a solid if enough thermal energy is added it can turn to a liquid or a gas.
Explanation: Its science.
D. MgO + 2HCI – MgCl2 + H20
<h3>Further explanation</h3>
The chemical equation is said to be balanced if the number of atoms in the reactants is equal to the number of atoms in the product
A. CaO2 + HCl → CaCl2 + H20
atoms O, Cl and H are not the same
B. CO2 + H2O + H2CO2
atoms O are not the same
C. K+ H2O → K20 + H2
atoms K are not the same
D. MgO + 2HCI – MgCl2 + H20
Mg, left = 1, right=1
O, left=1, right=1
H, left=2, right=2
Cl, left=2, right=2
Chemical equation is balanced
