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Fulcrum
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∙ 15y ago
Keira Wong
fever
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What is the lever system?
Next to the wedge, the lever is the simplest tool used by mankind. In its basic form, a single lever is stiff straight rod that rests on a pivot point called a fulcrum. The length of the rod is L, its length from one end of the rod to the pivot point is l; so the length from the pivot point to the opposite end is L - l. We can show that F = f (l/(L - l)) increases the input force f to F > f when (l/(L - l)) > 1.0. The ratio (l/(L - l)) is called the mechanical advantage of the lever. EX: If L = 10 and l = 9, then 9/(10 - 9) = 9 is the mechanical advantage. So that F = 9f would be the result.
What are torques?
Torque is a force that is applied to a lever. (Imagine a rachet. As you tighten a bolt, you push on the handle, which is essentially a lever. This lever exerts torque on the bolt, causing it to spin) Torque is defined as T = r cross F, or just R X F. Basically, if you multiply the force by the distance of the force from the central point on the object you are trying to rotate, you have torque.
Is a crowbar a lever or a fulcrum?
A crowbar is a Class 1 lever (fulcrum or pivot in the middle) The trick to remembering which type is which is: FRE 123. If F the fulcrum is in the middle it's Class 1, if the Resistance (or load is in the middle (a wheelbarrow) it's Class 2 and if the Effort is in the middle (tweezers) it's Class 3.It's a class 1 lever because the curve part of the crowbar (the fulcrum) is in between the effort, at the end of the crowbar where your hands are, and the load side, the short side that pry's the thing open.
Deduce an expression for the torque develop by the armature of a dc motor?
he magnitude of torque depends on three quantities: First, the force applied; second, the length of the lever arm[4] connecting the axis to the point of force application; and third, the angle between the two. In symbols:whereτ is the torque vector and τ is the magnitude of the torque,r is the displacement vector (a vector from the point from which torque is measured to the point where force is applied), and r is the length (or magnitude) of the lever arm vector,F is the force vector, and F is the magnitude of the force,× denotes the cross product,θ is the angle between the force vector and the lever arm vector.
What is a FLE ---123?
F- Class 1 lever with fulcrum in the middle L- Class 2 lever with load in the middle E- Class 3 lever with effort in the middle so FLE = 123 that is in levers
What is a compliment starting with letter F?
Fantastic or Fashionable can be a compliment starting with letter F.
Look at the metric ruler pictured Assuming that 0 is visible on the ruler and is also the starting point what is the distance to point F?
answr the question39mm beats the answer above dont know if its right3.0CM ;)
What is the function of the fulcrum on a lever?
The fulcrum is the point of the lever where a change in motion will occur. There are 3 types of levers that are illustrated at this URL (http://i1131.photobucket.com/albums/m554/skyop22/Answers%20Pictures/levers.gif). The three types will distribute the load differently based on where the fulcrum is.
How do you change a gear shift lever on a 1997 Ford F-350 4x4?
If it is a manual trans.take the screws out holding the shift lever boot on. Slide the boot up the gearshift. there will be a bolt holding the lever on, take that out and pull on the lever. you may have to get a little rough with the lever to get it to come off once the bolt is out.
What are examples f a lever?
a teeter-totter (see-saw) a light or elecrticity swtch
What is the melting point and boiling point for fluorine?
Fluorine (F) Melting point: 53.53 K, −219.62 °C, −363.32 °F Boiling point: 85.03 K, −188.12 °C, −306.62 °F
What is the opposite for the word plain starting with letter f?
The opposite for the word plain starting with letter f is FANCY.
