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Class levers have the resistance force between the effort force and the fulcrum?
Class 2.
What is the effect on the effort force used when the length of the effort arm is decreased?
The force you are referring to is called torque. here is an example: you have 2 wrenches, one with a short handle and the other with a long handle, and 2 identical bolts. The force required for the longer wrench to turn the bolt is less than the force required for the short to turn the bolt. This is because the longer the handle the greater the Torque and therefore less force needs to be applied. summary: longer "effort arm"=more torque= less force needed shorter "effort arm"=less torque=more force needed I hope this answers your question
How do you calculate if the effort force was missing?
If you know the amount of work, and distance, set up an algebraic expression. For instance if the amount of work is 40, and the distance is 2 feet, and you let F= effort force, the equation is 2F=40. You solve by dividing by both sides by 2. So, the effort force is 20.
What is the mechanical advantage of a fixed and free pulley?
A fixed pulley does NOT multiply the effort force or have a mechanical advantage. It only changes the direction of the effort force. A free pulley multiplies the effort by two. this means the free pulley has a mechanical advantage of 2.information from:www.mhscience02.com
What 2 things affect the gravitational force exerted by objects?
The two things that affect the gravitational force is Mass and Distance.
What is the formula of velocity ratio?
Effort force:Load force. For example, if you put in 10 newtons of force and the load force was exerting 5 newtons the velocity ratio would be 2:1
What are 2 things a organism needs?
food and water
What is the force you exert on a machine?
2 forces are always involved when using a machine. * Effort Force - FE - the force applied to a machine. * Resistance Force - FR -the force applied by a machine.
What two things should you describe about a force that acts on an object?
the 2 things you should describe about a force that acts on an object is the size and direction
How many pounds of effort force does a lever have if it has an effort arm of fifteen units long and a resistance arm of 10 units and can lift a 3-pound weight?
It would require (3 X 10)/15 = 2 lb to lift the 3 lb weight. Actually, something a little greater than that. 2 lb is the force to balance it. (Obviously, the lever "has" no force. It requires the force to lift the weight.)
What was Tom Landry's brother Robert doing for the war effort during World War 2?
united states army air force colonel with the eighth air force
What 2 major things did Americans do to support the us war effort?
using weapons and killing people
