80 POINT
PLS IF YOU DON'T KNOW THE ANSWER DON'T PUT A COMMENT IN THE BELOW
Use your kn...
Physics, 17.11.2021 15:30, jordicejudo
80 POINT
PLS IF YOU DON'T KNOW THE ANSWER DON'T PUT A COMMENT IN THE BELOW
Use your knowledge of the properties of sand, salt, and pepper to design a method for separating each of these substances from the mixture
MATERIALS:
The mixture of sand, salt, and pepper
2 index cards
felt
graduated cylinder
spoon
water
coffee filter
funnel
small cup
pie tin
THERE ARE FIVE QUESTIONS YOU HAVE TO ANSWER
Question 1: Predict the answer to your question or the outcome of your investigation. Your hypothesis should take the form of an “If . . . , then . . . , because . . . ” statement.
Question 2:List all materials and write each step of your procedure. Identify any variables that are present as dependent variables, independent variables, and constants in your experimental group and your control group.
Question 3:How would you modify your procedure if you were to perform the separation again?
Question 4:How does knowing the properties of matter help you separate the substances in mixtures?
Question 5:Record all quantitative and qualitative data here
Answers: 2
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The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?
Answers: 2
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The weights of bags filled by a machine are normally distributed with a standard deviation of 0.05 kilograms and a mean that can be set by the operator. at what level should the mean weight be set if it required that only 1% of the bags weigh less than 9.5 kilograms? round the answer to 2 decimal places.
Answers: 1
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Answers: 2
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Which of the following list the divisions of the geologic time scale in order from longest to shortest
Answers: 1
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