Hi guys, Which of the following unit(s) is a derived unit? Mass time density len

Question

Hi guys, Which of the following unit(s) is a derived unit? Mass time density length The scientific method can best be describe as a(an) systematic approach to solving a problem or answering a question making an educated guess (hypothesis) Making an observation Recognizing a trend Complete the following conversions by selecting the appropriate ratio: 2.54 cm = (feet, yards, inches, miles) 39.4 inches = (feet, yards, inches, miles, meter) 3.78 liters = (pints, quarts, gallons, ounces) 2.2 lbs. = (ounces, kilograms, ton, newton) Change the following numbers into the scientific notation: 1,250,000: 0.000125: .003020: 14.82: Perform the following operations: (2.35 Times 10^5)(3.33 Times 10^-7) 6.78 Times 10^3)(5.55 Times 10^-4) = 2.99 Times 10^-9/4.03 Times 10^-6 = 2.99 Times 10 /4 03 Times 10^6 = Convert 100 milligrams ( mg) to kilograms (Kg):

Explanation / Answer

1. Of the following unit(s), derived unit is,

c. density

2. Scientific method can be descibed as,

a. systematic approach to solving a problem or answering a question

3. Conversions

a. 2.54 cm = 1 inch

b. 39.4 inches = 1 meter

c. 3.78 Liters = 1 gallon

d. 2.2 lbs = 1 kiligram

4. Changing the number

a. 1,250,000: 1.25 x 10^6

b. 0.000125: = 1.25 x 10^-4

c. 0.003020: 3.02 x 10^-3

d. 14.82: 1.482 x 10^1

5. Profrom the following operations,

a. (2.35 x 10^5)(3.33 x 10^-7) = 0.078255

b. (6.78 x 10^3)(5.55 x 10^-4) = 3.763

c. (2.99 x 10^-9)(4.03 x 10^-6) = 1.205 x 10^-14

d. (2.99 x 10^9)(4.03 x 10^6) = 1.205 x 10^16

6. 100 milligram (mg) = 100 mg x (1 g/1000 mg) x (1 kg/1000 g) = 1.0 x 10^-4 kg

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