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Is the force of attraction greater or less when the distance between two objects is far?
All attractive forces, gravitational, coulombic, and magnetic vary as the square of the distance between two objects. Thus, as the distance increases, the force between them becomes much weaker and weaker.
Why are forces balanced when a car is travelling at a steady speed?
If the forces weren't balanced, then the car would be (de) accelerating, thus the forces must be balanced.
Why wet surface is more slippery?
Wet surfaces are more slippery because the coating of liquid acts as a lubricant which reduces the frictional forces exerted between objects in contact. Thus, the magnitude of the forces opposing motion are lessened to some extent.
What do balanced forces cause an object to do?
there are several conditions. 1) if they are acting on the straight line(toward each other or against each other) they'll be canceled out n no motion will take place. 2) if forces are on some possible angle then might some motion take place.
What kind of energy will be stored in the arrow when it is fired?
The arrow has combustible material coated on certainrestrictedarea of the arrow. This materials in coated form has highest potentialenergydue to stronger cohesive forces. when thismaterialswith stronger cohesive forces catch fire the molecules or the particles of the coatedmaterialgain higherkineticenergyby weakening cohesive forces. thekineticenergyof the particles faces resistanceand thus the kineticenergyis noted as frictional forcesbecausethe flame which withhigherkineticenergymoves forward faces resistance and flame may not go to more and more distance from the arrow area. Thus the cohesive and frictional forces do operate in flame movement or it could be termed as Friccohesity is highly operative factor for converting potentialenergyinto the kineticenergyof thematerialsin flame phenomenon.
3. Some forces act at a distance and thus do not require .?
Force is split into 2 different "types" contact forces act between 2 objects that are TOUCHING, non-contact forces act as a distance and are not contacting. So the answer would be contact.
Why some appliances do not need earthing?
Some items are double insulated, thus they do not require earthing.
Is the force of attraction greater or less when the distance between two objects is far?
All attractive forces, gravitational, coulombic, and magnetic vary as the square of the distance between two objects. Thus, as the distance increases, the force between them becomes much weaker and weaker.
Why are forces balanced when a car is travelling at a steady speed?
If the forces weren't balanced, then the car would be (de) accelerating, thus the forces must be balanced.
Why water has a higher boiling point than an organic molecule with same molecular weight?
it has to do with intermolecular forces, namely hydrogen "bonds". This attraction causes the particles to move less and thus require more energy to change phases
How are net forces and balanced forces not always alike?
Balanced forces means the net force is zero, but net force can also be positive or negative numbers. If I pull a block with a force of 10N to the right, and you pull it with a force of 10N to the left, the net force on the block is zero, thus balanced forces. If I start to pull with a force of 20N to the right, but you still pull 10N to the left, the net force on the block is 10N to the right, thus causing acceleration of the block to the right, thus unbalanced forces
Why wet surface is more slippery?
Wet surfaces are more slippery because the coating of liquid acts as a lubricant which reduces the frictional forces exerted between objects in contact. Thus, the magnitude of the forces opposing motion are lessened to some extent.
What do balanced forces cause an object to do?
there are several conditions. 1) if they are acting on the straight line(toward each other or against each other) they'll be canceled out n no motion will take place. 2) if forces are on some possible angle then might some motion take place.
What type of reaction releases energy and does not require initial energy to occur?
All reactions require an activation energy. Some appear not to because that energy is provided enough by their temperature. Thus, there is no reaction that does not require any initial energy to occur. A reaction that results in an overall release of energy is called an exothermic reaction.
How are magnetic forces and electric forces the same?
Maxwell saw the similarity E=cB =zH = zcD, thus: Forces F = eE = ecB=erfB=efrB=irB or F= eE = ezH= WbH.
Who audits Facebook?
Facebook is not yet a publicly listed company and thus does not require an audit
Why is hexane good at removing oil stains?
Hexane is exerts a large amount of dispertion forces and thus it is a good solvent for large molecules. You see, the larger a molecule is the more dispertion forces it has. What does all this mean? Well, if two molecules exert the same kind of forces the are miscible. And you guessed it right, oils have a great deal of dispertion forces. Thus hexane is good at dissolving oil stains.
