Please, answer below questions: Remember units. Use the correct number of significant figures. 1. A laser...

Please, answer below questions:

Remember units. Use the correct number of significant figures.

1. A laser produces a beam of light with a radius of 1.7 mm. Its energy density is 9.17 10-7 J/m3 . a) What is its power? b) What is the force of its radiation pressure?

2. As light goes from air to an unknown liquid, an incident angle of 20.0° becomes a refracted angle of 13.1°. If light goes from the unknown liquid to air, what is the largest incident angle that does not experience total internal reflection?

Expert Solution

genius_generous answered 2 years ago

Please answer these questions: 1) What determines the number of significant figures in an experimental measurement?...

Please answer these questions: 1) What determines the number of significant figures in an experimental measurement? 2) How do we find experimental uncertainty in measurement?Why is this important? 3) What is easier to measure, the diameter or the radius of a ball, and why?

1. What answer should be reported, with the correct number of significant figures, for the following...

1. What answer should be reported, with the correct number of significant figures, for the following calculation? (433.621 - 333.9)

1 Scientific Notation and Units •Know how to identify the correct number of significant figures in...

1 Scientific Notation and Units •Know how to identify the correct number of significant figures in a number .•Know how to work with powers of 10. •Know the main metric units for mass, distance, force, etc. •Know how to convert between scales for a unit, eg how many centimeters in akilometer. 2 Motion 2.1 Equations•v=∆x∆t•a=∆v∆t 2.2 Skills •Understand the relationship between acceleration and velocity, and what kind ofmotion occurs when they are same/opposite. •Know that average velocity is used when...

What is the answer to the following problem, reported to the correct number of significant figures?...

What is the answer to the following problem, reported to the correct number of significant figures? (9.072 − 8.7497)/ (21.75 ∗ 0.09764)

What answer should be reported, with the correct number of significant figures, for the following calculation...

What answer should be reported, with the correct number of significant figures, for the following calculation (249.36+ 41.3)/63.7?

Correct any answers that have the incorrect number of significant figures.

Correct any answers that have the incorrect number of significant figures. (a) (908.4 - 3.4) / 3.52 x 10⁴ = 0.026 (b) (1206.7 - 0.904) x 89 = 1.07 x 10⁵ (c) (876.90 + 98.1) / 56.998 = 17.11 (d) (4.55 / 407859) + 1.00098 = 1.00210

1. Carry out the following calculations, expressing each result with the correct number of significant figures:?...

1. Carry out the following calculations, expressing each result with the correct number of significant figures:? a) 16.421 g + 0.050 48 g = ? g b) 4.6742 g / 0.003 71 L = ? g/L c) 0.541 mL + 32.1 mL - 2.5833 mL = ? mL 2. The following cylinder contains three liquids that do not mix with one another: water (density=1.0g/mL), vegetable oil (density=0.93g/mL), and mercury (density=13.5g/mL -Which liquid is which? a.Top liquid is? b. Middle liquid...

Answer the following questions based on the reaction below. Report all answers to three significant figures....

Answer the following questions based on the reaction below. Report all answers to three significant figures. K2SO4(aq) + Sr(NO3)2(aq) → SrSO4(s) + 2KNO3(aq) The concentration of K2SO4 is 0.222 M at the start of the reaction, and 0.135 M after 122 seconds. The initial concentrations of the products are zero. 1. What is the average rate of reaction (in M/min) over this time period? 2. What is the average rate of change (in M/min) of K2SO4 in the first 122...

Please read the article below, and answer the questions that follow. In doing so, remember the...

Please read the article below, and answer the questions that follow. In doing so, remember the following, - Although the use of generic theories, covered in class/your module guide/text book will provide a framework, the expectation for the student is to be able to discuss it in context with research relevant to South Africa and your own reflective experiences. - You are required to extensively research current South African trends, amidst our changing political landscape and benchmarked against a global...

Please answer all the questions with the question number and the correct answer (letter) next to...

Please answer all the questions with the question number and the correct answer (letter) next to it :) 27-Some of the best ways to learn about small business include: A Learn from successful entrepreneurs in the field. B College classes on small business. C Working in the field either in as an intern or employee. D All of the above. 28- By becoming certified as a welder, a manager can go a long way toward acquiring the _________ skills managers...

Question