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allsm [11]
3 years ago
13

What distinguishes first class levers from both second and third class levers?

Health
2 answers:
CaHeK987 [17]3 years ago
8 0
In the first class lever the fulcrum is located between the effort and the resistance.In second class lever The second class of lever has the fulcrum at one end, the effort applied at the other end, and the resistance somewhere between those points. [ The third class of levers has the fulcrum at one end of the lever, and the weight or resistance to be overcome is at the other end, with the effort applied at some point between. ]
Ymorist [56]3 years ago
3 0

Answer:

A. the fulcrum is between the load and effort

Explanation:

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The dimensions of health operate independently they don’t affect one another true or false
Alja [10]
They don't effect one another..... Media has peimarily entertainment has so little effect on are "wellness".......
5 0
3 years ago
In Community X (population 20,000), an epidemiologist conducted a prevalence survey in January of 2012 and reported an HIV preva
Shalnov [3]

Based on the results of the study shown below, the epidemiologist has reason to worry because the incidence rate increased over four times the previous level as shown below:

  • number of HIV cases = 440 persons
  • new incidence rate = 2.25 per 1000 persons

<h3>What is prevalence and incidence rate?</h3>

Prevalence rate is the proportion of persons in a population who have a particular disease or attribute at a specified point in time or over a specified period of time.

  • Prevalence rate = number of cases/total population × 100%

Incidence rate is the proportion of new cases of a condition observed within a given period of time.

  • Incidence rate = number of new cases/population at risk × 1000
  • population at risk = total population - previous cases

The number of people who had HIV in January 2012 is calculated as follows:

  • number of HIV cases = prevalence rate × total population

number of HIV cases = 2.2% × 20000

number of HIV cases = 440 persons

Incidence rate between February 2012 and January 2013 is calculated as follows:

Incidence rate = 50/(20000 - 440) × 1000

Incidence rate = 2.25 per 1000 persons.

Based on the new incidence rate, the epidemiologist has reason to worry because the incidence rate has increased over four times the previous level.

Learn more about prevalence and incidence rate at: brainly.com/question/27108142

8 0
3 years ago
Tennis: For a serve to be good, the player serving must hit the ball over the net and land have it land anywhere within the oppo
Crank

Answer:

false

Explanation:

the ball must land diagonal to where the server is serving and the ball has to be in that little square.

hope this helps:)

3 0
3 years ago
Which example shows verbal communication
Mnenie [13.5K]

Example of Verbal communication is explained below.

Explanation:

People talk to each other and communicate their feelings, thoughts, expressions, likes, dislikes, views, anything, through exchanging these information either verbally or non verbally.  

When people communicate their information through speaking it out, it is called as the verbal communication.

When people communicate their information non verbally, through visual cues, it is called as the non verbal communication. Non verbal communication include communicating through gestures, facial expressions, body language, touch, etc.  

When people talk on phones, where they are only listening to one another's words of mouth, this is an example of only verbal communication.

Learn more about Ways of Communication at:

brainly.com/question/14168194

#LearnWithBrainly

4 0
3 years ago
Bret Thomas has always dreamed of becoming a jet fighter pilot. After seeing the movie Top Gun, Bret bought pilot's sunglasses a
AleksandrR [38]

Answer:

Bret Thomas has always dreamed of becoming a jet fighter pilot. After seeing the movie Top Gun, Bret bought pilot's sunglasses and even game himself a "call sign"- Snake. When Bret has such fantasies or emotional responses to his needs, the type of needs that are being addressed are <u>hedonic.</u>

Explanation:

<u>Hedonic needs</u> : Subjective and experimental needs ( Needs for excitement, self-confidence, fantasy) usually associated with fun.

<u>forexample:</u> Shopping for pleasure, entertainment or recreation.

As in the given scenario, After seeing the movie Top Gun, Bret bought pilot's sunglasses and even game himself a "call sign"- Snake. When Bret has such fantasies or emotional responses to his needs, the type of needs that are being addressed are <u>hedonic.</u>

5 0
3 years ago
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