Answer:
d
Explanation:
Generally, it is transported through pipes so I think statement d is incorrect.
Answer:
b=200
l=100
Explanation:
so since it is a square all sides would be equal
when you cut the square vertically the dimensions will change
the bredth would be same that is 200
but the length would be half that is 100
There are many safety precautions and rules you MUST follow during labs.
for this incident here is what you should do:
1)Notify your Instructor and partner
2) if the liquid is toxic (like not water or vinegar) then let your Instructor handle it properly, or follow your instructors orders (like if they say to put a towel over it or something like that)
3) Broken glassware, minus mercury thermometer, must be immediately cleaned up, do not use your bare hand, always wear gloves.
4)dispose of the broken glass properly and clean the liquid up (unless it is harmful, then let your instructor do it)
λ=Wavelength = .129 m = 0.129 m
E = energy = ?
h =Planck constant = 6.63 × 10^-34 J.s
f = frequency of photo/ electromagnetic radiation = c/λ
c = Speed of light in a vacuum = 3 × 10^8 m/s
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I hope I helped you^_^
18. When we conduct an experiment the condition we are investigating the one thing we want to know about is called the:
b. hypothesis - we are conducting the experiment in order to validate or invalidate the hypothesis
19. The group of experimental subjects that is left “natural” or left unchanged is called the:
a. control group - we need to have a reference point for our experiment to check if something has changed, how much have been changed or if have not changed at all.
20.The group of experimental subjects that has the one condition changed is the:
b.experimental group
- on this grump we make changes and compare the results with the control group
21. When the experiment is complete the researcher:
c. analyzes the data and comes to a conclusion - after experiments the data are analyzed to see if the hypothesis is proved of not.
