Fulcrum
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.
To determine the distance to point F on the metric ruler, simply locate point F and read the measurement directly from the ruler. The distance will be indicated by the nearest millimeter mark, starting from the 0 point. If point F is, for example, at the 5 cm mark, then the distance to point F is 5 centimeters. Always ensure to read the measurement accurately, considering any subdivisions for precise values.
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.
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.
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.
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Fantastic or Fashionable can be a compliment starting with letter F.
The moment (or torque) is calculated using the formula: ( M = F \times d ), where ( M ) is the moment, ( F ) is the force applied, and ( d ) is the distance from the pivot point to the point where the force is applied, measured perpendicularly. If the force is not applied perpendicularly, the formula can be adjusted to ( M = F \times d \times \sin(\theta) ), where ( \theta ) is the angle between the force vector and the lever arm.
Water boils at 212°F (100°C) and freezes at 32°F (0°C).
No, Fahrenheit units are not the same size as Kelvin units. This is because the Fahrenheit scale is based on a different reference point (32°F for freezing point of water and 212°F for boiling point of water) compared to the Kelvin scale, which uses absolute zero as its starting point (0K).
The boiling point of copper is about 2562°C (4644°F) and the melting point is about 1085°C (1985°F).
Chlorine melts at -150.7 °F and boils at -29.27 °F