Needing some help with these last bits of home work if anyone can help with numb

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Needing some help with these last bits of home work if anyone can help with numbers 1-6

0.3 You just measured a block of wood and obtained the following information: mass = 43.33 g length-6.30cm height- 5.30 cm width 3.30 cm Determine the density of the wood block.g/cm An automobile engine has a piston displacement of 2.10L. Express this volume in cubic inches. (11-1000crn)(1 in 2.54 cm)in An American engineer who had been transferred to Europe was asked to build bridge pilings exactly as he had in the United States. Each piling required 25.5 cubic yards of concrete in the United States. How many cubic meters of concrete are required for each piling? Given: 1 yd-0.914 m, m 3 A person weighs 185.5 many milligrams of the drug should be given? (2.20 lb = 1 kg) lb, and the correct dosage of a drug is given as 1.35 mg per kilogram of body weight. How mg An excavator is preparing to dig a basement for a new house. Part of his contract reads that he dirt he removes while digging the basement in an EPA approved landfill. He will dig a hole that is 40.0 feet wide by 80.0 feet long must dispose of all the and 7.5 feet deep. He first uses his shovel and scoops up 1.00 kg of dirt, and then determines that the dirt has a volume of 600 cm3. The excavator knows that his dump truck can only carry 8,000 kg of dirt. How many dump-truck loads will it take to haul the dirt away? (1 in = 2.54 cm) dump-truck loads e the cost of gasoline for a 1320-mile trip from Wytheville to Orlando in a car that gets 28.0 miles per gallon, if the average price of gas is $3.25 per gallon? $

Explanation / Answer

1)

volume = length * width * height

= 6.30 cm * 5.30 cm * 3.30 cm

= 110.2 cm^3

mass = 43.33 g

use:

density = mass / volume

= 43.33 g / 110.2 cm^3

= 0.393 g/cm^3

Answer: 0.393 g/cm^3

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