since it is balanced the net moment about the pivot is zero. The meter stick center of gravity mass is at the 50 cm point, or 25 cm to the right of the pivot. 150 x 25 = mass of stick x 25 ; so mass is also 150 grams
The mass is 150 grams.
closer toward the load
convection
You can put a uniform object into water.If it sinks density is higher than water,if floats lesser than water.If you can place anywhere in water,density is equal to water.
they are material particles!
It was the first artificial (manmade) object to be placed in orbit around the earth. It started the space race between the USA and the USSR.
Thats how it is
As close to the load as possible. Note that the closer to the load the fulcrum is placed, the shorter the lift that can be effectuated by the use of the lever.
If the book holders are shorter than the fulcrum then it can still function are a fulcrum. If the book holders are taller than the fulcrum then it can't function as a fulcrum.
closer toward the load
there is the folcrum and two wedges which are the blades the folcrom is in the middle of the scissor connectin the two blades
Mechanical balances work by adding a known amount of weight against the unknown weight across a fulcrum. This can be done simply by adding more weight, or by shifting the position of the weight relative to the fulcrum (if you've ever used a see-saw, you know you can make yourself "heavier" by moving further away from the middle). In the case of a triple beam balance, which is often used in science classes nowadays, the object to be weighed is placed on a plate that is counter-balanced by sliding a large, medium, and small weight along their respective beams. The beams are marked with the value of the counter-weight along their length allowing you to determine, when the scale is balanced, how much your unknown object weighs based on where the counter-weights sit.
[object Object]
The Triple Beam Balance is a typical mechanical balance. It has a beam which is supported by a fulcrum. On one side is a pan on which the object is placed. On the other side, the beam is split into three parallel beams , each supporting one weight.
The force is equal to the mass times your lever arm. If 4n is placed 0.2m from the fulcrum, you have 0.8 force units on you lever arm. This would imply that a mass of 2n should be placed 0.4m from the fulcrum in the opposite direction. This would give you 0.8 force units on both sides, thereby balancing the lever.
A balanced chemical equation has correct placed coefficients and a representative chemical equation need these coefficients.
[object Object]
A solution.