The horizontal distance represents wavelength λ. The time represents the period of the wave T.
Wave speed is given by v= λ/T
Hence, those are the only parameters needed.
Note: the vertical distance is for calculating amplitude which is not used in calculating wave speed.
Answer:C3H8 +5O2-- >3CO2+4H2O, 330L of air,Hof C3H8= 2323.7 KJ/mol,dT=75.30
Explanation:
First We need to find a balanced equation to depict the combustion of the propane:
C3H8 +5O2-- >3CO2+4H2O
b)

330L of air
25 g C3H8 are equal to 44g and 5 mol of O2 will react with a mol of C3H8, each mol of O2 weigh 32g and for each L of air contains 0.275g of O2
c) 
the enthalpy of formation of propane will be the negative of the sum of the enthalpy of formation multiplied by the mols of the H2O and CO2
Hof C3H8= 2323.7 KJ/mol
d) We know that each 44g of C3H8(1mol) transfer 2219.2 KJ then:
= 1260.9KJ
We use the equation of heat transfered
Q=mCpdT
1260.9KJ= 4KJ *4.186KJ/Kg*°C *dT
We clear the equation
Q/mCp=dT
dT=75.30
First, we'll identify the beaker containing pure water as follows:
We'll take equal masses from each of the three beakers and measure the mass of each.
We'll then identify the density of each by using the rule : density =mass/volume
Pure water will be the liquid having density equal to 1 gm/cm^3
Then, we'll differentiate between the salt and sugar solution by measuring the conductivity of each solution. Salt solution is a good conductor while solution of sugar is a bad conductor.
Reliance on something or someone for support.
Hope this helps
Inhibition of protein synthesis is the mode of action done by most antifungal drugs.
<h3>What is the mode of action of antifungal drugs?</h3>
Antifungals drugs inhibit the synthesis of ergosterol the main fungal sterol, polyenes which interact with fungal membrane sterols and 5-fluorocytosine inhibits macromolecular synthesis.
So we can conclude that inhibition of protein synthesis is the mode of action done by most antifungal drugs.
Learn more about drug here: brainly.com/question/26254731