A small cube of iron is observed under a microscope. The edge of the cube is 3.00 x 10-6 cm long. The atomic mass of iron is 55.9 u, and its density is 7.86 g/cm³. (a) Find the mass of the cube. g (b) Find the number of iron atoms in the cube. atoms

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A: Answer: (A) 143.68 mm2 (B) 0.5612 (C) 49.96 mm (D)7.02 mm (E)1.7817 mm Explaination: Given length of…

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A: Given, 1 lbf=4.45 N, 1 ft=0.3048 m, 1 hr=3600 s, 1 psi=6894.76 Pa, 1 mi=1.69 km, and 1 in=2.45 cm.

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A: We know, density=MassVolume

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A: Given: The mass of the quantity is m=6.54 kg. Required: percent of uncertainty.

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A: The width in centimeters can be obtained as The depth in centimeters can be obtained as The height…

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A:

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A: Weight of one raindrop m=49 ng=49*10-12kg, number of raindrops falling per minute n=8.4*109 and…

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A: Note: According to guidelines, I can solve first three parts of the question. If you need help with…

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A: Step1:∙CD‐ROM  store information 680 megabites.∙Average word  require 9 bytes of information.

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A:

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A: Side , a = 4 m To find = Area

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A:

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A:

Q: Applying the rules of significant figures and calculate 1. 123.4 + 120 + 4.822 -21 2.…

A: To calculate : using the rules of significant figures

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A:

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A:

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A: Q = 4.19 m2sR = 7.24×10-4 kg S = 1.23 kg.ms2T = 2.88×10-3 kgmU = 12.3 kg2m2s3V = 1.01×10-6 sIt is…

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A:

Q: Object Mi (kg) M2 (kg) M3 (kg) M4 (kg) M (kg) SM (kg) UM (kg) Object 1 0.01935 0.01935 0.01935…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

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A:

Q: Which of the following pairs of measured numbers have the same uncertainty or error in both numbers?…

A:

Q: A rectangle has a length of (2.0 ± 0.2) m and a width of (1.5 ± 0.1) m. Calculate (a) the area and…

A: Write the value of area of the rectangle and its uncertainty.

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A: According to question we need to find value of x.

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A: As per Bartleby guidelines I have solved first question out of multiple questions and if you want…

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A: Required :  Preferred practice regarding significant figures.

Q: 13. Which of the answers for the following conversions contains the correct answer and the number of…

A: Correct answer is given below.

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A:

Q: State how many significant figures are proper in the results of the following calculations. (a)…

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A:

Q: A student measures the thickness of a textbook with a meter stick and obtains a value of 3.8 cm ±0.1…

A: Option (b) agree with the value of the first student. i e  3.81 cm ±0.01 cm

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A:

Q: 11. Complete these addition problems. Write the sum as a least precise measurement. a. 3.414 s+…

A: solution-:(a) unit of answer is 's'.3.4140010.0200058.32500+0.0009871.75998 (b) unit of answer is…

Estimate of calculation