The wavelength decreases to roughly half.
(The frequency roughly doubles.)
Answer:
I might be able to help, but I also might not. I need to check if I can get you the answer.
Explanation:
The variables that Madison will have to deal with to test her hypothesis that increased concentrations of salt in the air speeds the corrosion of certain metals are as follows:
- Independent variable: concentration of salt
- Dependent variable: corrosion of metal
<h3>What are independent and dependent variables?</h3>
In an experiment, the independent variable is the variable that is changed or manipulated in a series of experiments.
On the other hand, a dependent variable is that outcome measured to see the effectiveness of the treatment.
According to this question, Madison makes an hypothesis that an increased concentrations of salt in the air speeds the corrosion of certain metals, the variables she should look out for are as follows:
- Independent variable: concentration of salt
- Dependent variable: corrosion of metal
Learn more about variables at: brainly.com/question/1479694
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Answer:
825 kgm⁻³
Explanation:
ρ = density of wood = ?
ρ' = density of water = 1000 kgm⁻³
V = volume of wood = 10 x 4 x 2 = 80 cm³ = 80 x 10⁻⁶ m³
V' = Volume of water displaced = 10 x 4 x 1.65 = 66 cm³ = 66 x 10⁻⁶ m³
Using equilibrium of force in vertical direction
Force of buoyancy = Weight of the wood
ρ' V' g = ρ V g
ρ' V' = ρ V
(1000) (66 x 10⁻⁶) = ρ (80 x 10⁻⁶)
ρ = 825 kgm⁻³
Answer:
The order of maximum is 
Explanation:
From the question we are told that
The diffraction grating is k = 300 lines per mm = 300000 lines per m
The wavelength is 
Generally the condition for constructive interference is mathematically represented as
Here n is the order maximum
d is the distance the grating which is mathematically represented as
=> 
=> 
So
at maximum 
=> 
=>
