Answer:
I thinks its B
Explanation:
Because im pretty sure mechanical waves travel through a medium which is matter.(But im really sorry if its wrong)
Answer:
Sugar can be obtained by evaporation.
Filtering wont work because sugar is soluble in water thus will mix to form one layer.
The answer is Point C because it is the lowest point
Answer:
300000Pa or 3×10^5 Pa
Explanation:
Since the problem involves only two parameters of volume and pressure, the formula for Boyle's law is suitably used.
Using Boyle's law
P1V1 = P2V2
P1 is the initial pressure = 1.5×10^5Pa
V1 is the initial volume = 0.08m3
P2 is the final pressure (required)
V2 is the final volume = 0.04 m3
From the formula, P2 = P1V1/V2
P2 = 1.5×10^5 × 0.08 ÷ 0.04
= 300000Pa or 3×10^5 Pa.
Answer: B
Explanation:
I think this is false. I really don't know the explination, but due to me just finishing this class. I'm going to go with B.
