Calculate how many significant figures should be used
Calculate how many significant figures should be used to express the mass of anyone using the scale whose mass is between 10 and 99kg. A bathroom-type scale is calibrated in the tenths of a kilogram from 1 to 200kg.
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For each of the following confidence intervals, indicate how much of the distribution would be placed in the cutoff region for a two tailed test.
Explain what volume of is required to neutralize the NaOH solution? Calculate the ph of the acid/base solution when the following volumes of HNO3 have been added.
Calculate the pH and concentrations of K+, H+, OH-, H2PO4-, PO43- , HPO42- from a1.00L solution which is having .0250 mol KH2PO4 and 0.030 mol KOH.
One is filled with Hydrogen gas, the other with Oxygen, each at the same pressure. Both containers are heated above 100 degrees C until the pressure in each is 1.60 atm.
The atomic mass of born is10.81 amu. Boron obtained from the borax deposits in Death Valley consists of 2 isotopes. They are boron-10, boron-11 with atomic masses of10.013 amu and 11.009 amu, respectively.
If student buys the $1000 IRA when he is 25 years old and expects to earn the average of 4% per year compounded annually over 35 years (until he is 60), how much accumulate in investment?
Consider a mixture of two gases, A and B, confined to a closed vessel. A quantity of a third gas, C, is added to the same vessel at the same temperature.
Consider the experiment of tossing a pair of dice. Let X be the outcome (i.e., the number of dots appearing face up) on the first die and let Y be the outcome on the second die. Find the joint probability distribution p(x,y).
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