Answer:
There are three types or classes of levers, according to where the load and effort are located with respect to the fulcrum. Since humans usually provide energy to levers, "effort" and "load" are often used instead of input and output.
Class 1 has the fulcrum placed between the effort and load. Class 2 has the load between the effort and the fulcrum. Class 3 has the effort between the load and the fulcrum.
Each has its own uses and advantages.
Questions you may have include:
What is a class 1 lever?
What is a class 2 lever?
What is a class 3 lever?
This lesson will answer those questions. Useful tool: Units Conversion
Class 1 lever
A Class 1 lever has the fulcrum placed between the effort and load. The movement of the load is in the opposite direction of the movement of the effort. This is the most common lever configuration.
Explanation:
Relapse is the return to the alcohol and is greatest danger for anyone who has entered treatment program.Once the person has returned to their previous addictive behavior, the possibility that he will ever get another opportunity to quit is smaller. <span>For problem drinkers, most relapses occur within 90 days after the end of treatment program. </span>Identifying the causes for relapse is very important in finding solutions how to prevent them.
The first one is b
Question 10 is Heart rate
Question 12 is perimeter
Thats all i know sorry
