A piece of cardboard is 12.0 cm long, 6.3 cm wide and 0.75 millimeters thick. What is the volume of this piece of cardboard in cubic meters? Enter your answer in the space provided WITHOUT units. Make sure to round your answer to the correct number of significant figures. Please give the number as a normal number, do not use scientific notation. (In example: a normal number = 4300 instead of the number being in scientific notation as = 4.3 X 103)

Please don't provide handwriting solution

A student uses a 100.00 mL volumetric flask to determine the density of a sample of water.  The mass of the dry empty flask is determined to be 80.354 g.  The flask is filled to the line 5 times with the water sample and the mass of the flask and the water is determined each time giving the 5 masses below.  measurement 1:  172.275 g measurement 2: 172.288 g measurement 3: 172.28 g measurement 4: 172.263 g measurement 5: 172.378 g Based on the data given above, what is the average density of the sample in g/mL based on those measurements?  Enter your answer with 3 significant figures.

The diameter of an atom is approximately 1 x 1010m. What is the diameter in millimeters? (Hint, your answer will be in scientific notation, use the format of 1x10-??mm.) (please provide your answer in scientific notation with the correct number of significant digits and units.)

How many miles in 1.2 x 104 yards? Along with the conversions from your equation sheet, you will need to know that 3 ft = 1 yard (this conversion is exact). Enter your unit as mi.  Make sure you include the appropriate units and significant figures. Write your work using dimensional analysis

In 1999, scientists discovered a new class of black holes with masses 100 to 10,000 times the mass of our sun, but occupying less space than our moon. Suppose that one of these black holes has a mass of 1×10^3 suns and a radius equal to one-half the radius of our moon. What is its density in grams per cubic centimeter? The mass of the sun is 2.0×10^30 kg and the radius of the moon is 2.16×10^3 mi (Volume of a sphere =4/3πr^3)

Perform the calculations below and give the results with correct significant figures. 31.816 g + 4.23 g + 0.097 g = 3.48 m × 5.916 m × 19.27 m = (0.0451 × 2.007 × 104) − (28.16 ÷ 0.874) =  g  m3

Perform the calculation shown. What is the answer rounded to the correct number of significant figures? Include the correct unit. Be Careful!! BE SURE you only include the correct number of significant figures based on this operation as that is what this question is really checking. (3.336x10^8) g divided by (1.1x10^-1) mL Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: Answer x10 units

The distance from San Francisco to Los Angeles is approximately 385 miles. 1609 m = 1 mile. How many kilometers is this? Do not enter “kilometers" as part of your answer.

An empty graduated cylinder weighed 38.879 grams. After it was filled with 34.150 mL of a an unknown liquid substance, it weighed 60.627 grams. What is the density of the unknown substance, based on these measurements? Give you answer in decimal format. When entering units, use proper abbreviated units with proper capitalization