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the question is this;

A charge Q is to be divided on two objects.What should be the values of the charge on the objects so that the force between the objects can be maximum?

here in the...

Two towns A and B are connected by a regular bus service with a bus leaving in either direction every T minutes. A man cycling with a speed of 20 km h–1 in the direction A to B notices that a bus...

A man of mass 85 kg stands on a lift of mass 30 kg.when he pulls the rope ,he exerts a force of 400 newton on the floor of the lift.calculate the acceleration of lift.
Please also explain the steps

A man standing in a lift holds a spring balance with load of 5 kg suspended from it.What would be the reading of the balance when the is descending with an acceleration of 3.8 m/s^2.my answer is 30...

In one of the physics book I read the following article on variation of weight in lift.I request uyou also please see it & answer my query.
It was written that
"In a lift the actual weight of the...

consider the given question
A wooden block of mass 2 kg rests on a soft horizontal floor.when an iron cylinder of mass 25 kg is placed on the top of the block,the floor yields downward with a...

Please take this question seriously-
Newton's third law state that to every action there is a equal and opposite reaction.then if a body of mass m is attached to a spring.The body will be pulled...

Newton's third law says that to every action there is a equal and opposite reaction then please consider the my following two doubts:
1.suppose a box of mass 2 kg is put on a table and then the...

the kinetic gas equation given on the basis of kinetic theory of gases is;
PV=(mnu^2)/3
where P=pressure exerted by gas
V=volume of gas
m=mass of each molecule of gas
u=root mean square.
Here...

please explain me mathematically that the speed of a driving car safely in darkness depends upon the range of headlights.
The only hint which I got was that:-I the range of headlight is x and the...

hi friends,please help to solve any one or both of the following
can anyone please prove me mathematically that if a car is travelling at a speed of v and it applies a retardation of a and it has to...

see the question
The driver of a car travelling at a velocity v suddenly sees a obstacle at distance r .Is it better to apply brake or take a turn.
see I am having problem that in the solution part...

Hi my techie friends help me out,
I am having a Samsung mobile model is champ,it's touch screen and model is "GT-C3303".It main problem is that if I convert any video in 3gp(or in any format ) and...

An open vessel at 300 kelvin is heated until 0.6 parts of the air in it has been expelled.Assuming that the volume of the vessel remain constant,find the temperature to which the vessel has been...

Please solve the following question by explaining also
A large flask fitted with a stop-cock is evacuated and weighed:it's mass is found to be 134.567 gram.It is then filled to a pressure of 735 mm...

See the following case;
A stone of mass 5 kg falls from a 50 metre height and buries 1 meter deep in the sand.find the average resistance offered by sand and the time it takes to penetrate

see the following case;
A hunter has a machine gun that can fire 50 gram bullets with a velocity of 150m/s.A 60 kg tiger pounces at him with a velocity of 10m/s.how many bullets should the hunter...

can anyone please prove the following
cosec10-√3sec10=4
cosec10 means cosec10 degree.

In this problem I have to ask that horse exerts a force F on ground and reaction R is given by ground. The horizontal component of R i.e. RcosƟ push the horse forward.But I have to ask that this...

Hi guys, If I have to download a video of 50 mb, one version is of flv format of 50 mb & 360p and another one is mp4 file of 50mb &360p.which one will have better picture quality

Leave this man,he will just play with your life and feelings

if
x=0.092y then
if we write
x=9.2% of y.What does it mean & how we derive to this point

In triangle ABC 'a' is the side between B & C,b is the side between A & C and c is the side between A & B. prove that
a(cosC - cosB)=(b-c)(1+ cosA)

Can anyone please explain me that how it is possible when same force is applied for the same time on different bodies of different mass then still same change in momentum takes place

A ball thrown vertically upwards with a speed of 19.6m/s from the top of a tower returns to earth in 6 seconds.what is the height of tower?

A hammer of mass 1kg moving with a speed of 6m/s strkes a wall and come to rest in 0.1 sec.
In this question if we are asked to find the retarding force that stops the hammer then why we will ...

Explain me that how it is possible that if a force is acting on a moving body perpendicular to the direction of motion,then no change in speed will take but direction may change?

[{(39.2)^(2)*sin(x)^(2)}+980]/(2*9.8)={(39.2)^2*cos(x)^2}/(*·9.8)

Is it compulsory that orbitals formed by sp hybridised orbitals will lie along Z-axis only or when s orbital and pz orbital will form hybridise orbital then only hybridised orbitals will lie along...

To a man going east in a car with a velocity of 40km/h,a train appears to move towards north with a velocity of 40√3 km/h.what is the actual velocity and direction of train ?

this question is of vector concept-
a car travelling at 36km/h north turns west in 5 seconds and maintains the same speed.what is the magnitude and direction of acceleration of the car?
Answer is...

Find the torque of force 7i-3j-5k about the origin which acts on a particle whose position vector is 7i+j-k

Find the torque of force 7i-3j-5k about the origin which acts on a particle whose position vector is 7i+j-k.

sir,
I have heard a lot about MIT university.But whenever I tried to get information about it,it was very confusing and variable.So can you please tell me any source(any website) from where I can...

Can anyone give me proof and complete explanation to the fact that
"the dot product of vector A with a unit vector B is the magnitude of A in the direction B."
Please do not get annoyed by my...

what will be the result if we will find dot product of a given displacement vector to the unit vector of another displacement vector? Are we going to get the magnitude of first vector in the...

Sir,
I am trying to convert a video to make it compatible for my mobile.I want to change it's default volume to high as in computer I can change the volume too high but I can not do that in...

sir,
I was told that frequency is a characteristic of wave.Recently I was thought "planck's quantumn theory" in which it was given that radiant energy is emitted or absorbed in the form of...

Sir,I am asking this question in preference to my last question.After reading the reply of my last question I have come to a conclusion that the weight of water vapour at gasseous state is 22.4 kg as...

sir,was told that density of water is 1g per centimetre cube.So according to it,the density of one mole water should be same only.And we know the mass of one mole water is 18g.therefore
...

In chemistry I was told that 2 litres of hydrogen reacts with 1 litres of oxygen to produce 2 litres of water.But here volume of water and hydrogen is same so where the volume of oxygen went which...