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3 years ago

TE

1 answer:

7 0

This would be answer choice D: all of the above. Low back pain can be classified by duration as acute (pain lasting less than 6 weeks), sub-chronic (6 to 12 weeks), or chronic (more than 12 weeks).

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In a bicycle race, a bicyclist coasts down a hill with a 7 % grade to save energy. The mass of the bicycle and rider is 80 kg, t

olga_2 [115]

Answer: you need 4567 km but also mph Kikuyus

Explanation:

7 0

3 years ago

You are trying to remove 10.0 µm diameter particles in a water treatment plant. The water is at 20 °C, and the particle density

Ainat [17]

Answer:

minimum required width of the basin is 42.87 m

Explanation:

given data

diameter particles = 10.0 µm

water temperature = 20 °C

particle density = 1.2 g/mL = 1200 kg/m³

plant treats water = 0.100 m³ /s

deep = 3.5 m

length to width ratio = 5:1

to find out

What is the minimum required width of the basin

solution

we know dynamic viscosity of water = 1.002 × $10^{-3}$ kg/m-s

and density of water is = 1000 kg/m³

now we apply here stock law for settling velocity that is express as

settling velocity = $\frac{(\rho_p - \rho_w)* gD^2}{18* \mu}$ ..................1

here ρ(p) is particle density and ρ(w) is density of water and µ is dynamic viscosity of water

so put here value

settling velocity = $\frac{(1200-1000)* 9.81*(10*10^{-6})^2}{18* 1.002*10^{-3}}$

settling velocity = 1.088 × $10^{-5}$ m/s

so now we calculate length of basin

we know length to width ratio is 5:1

so length L = 5b

and

minimum width of basin will be

Q = Area × settling velocity

0.1 = L × b × 1.088 × $10^{-5}$

0.1 = 5b × b × 1.088 × $10^{-5}$

b = 42.87 m

so minimum required width of the basin is 42.87 m

4 0

3 years ago

A fluid of viscosity 0.2 kg/m⋅s flows steadily through a 0.10 m diameter pipe with a velocity profile given by vz = 2.0[1 – (r/R

stiv31 [10]

Answer:

e. r momentum is being transferred in the negative z direction

Explanation:

6 0

3 years ago

A device that helps increase field worker productivity by providing reliable location and time

frutty [35]

Global Positioning System (GPS) is the device that helps increase field worker productivity by providing reliable location and time.

<u>Explanation:</u>

GPS, a satellite based and radio navigation oriented system. It can be accessible from anywhere in the world irrespective of obstructions in weather and extremely used by Air force.

With advancing technologies, the uses of GPS can be extended to improve the productivity of the workforce by identifying location services and field operation insights.

Today, GPS chips are built in various devices including smartphones, tablet, and other gadgets. It doe not need users to send data as it can work on internet reception.

3 0

4 years ago

Choose two consumer services careers and research online to determine what kinds of professional organizations exist for these p

Tom [10]

Answer:

Market Researcher

The Marketing Research Association (MRA) is a professional organization for market researchers. It provides information to its members on how to improve marketing research for businesses and individuals. The MRA gives its members important industry news and information through their website. Their code for marketing research standards also protects members from bad actors and improves the public perception of marketing research. The association also has a full time lobbyist representing the market research industry before government officials. The MRA has various membership categories as well. The membership fee differs for each category.

Credit Analyst

A credit analyst is a person that reviews consumer or business financial profiles in order to give a loan or credit to them. When a business or individual applies for a credit card, loan, trade account, or another type of financial product whereby a company allows them the use of their money, a credit analyst’s job is to ensure that the consumer or business is willing and able to pay it back in the future. Credit analysts use tools such as credit reports, FICO scores, Dun & Bradstreet ratings, financial statement analyses, and personal references to perform their job. A credit analyst should have a bachelor’s degree with a major in business. Finance and economics majors are particularly suited to a credit analyst position. Certifications are not required, but some credit analysts pursue CPA or CFA (Certified Financial Analyst) designations.

Explanation:

5 0

3 years ago