Recent content by Cromptu

Hello! I have some doubts regarding centrifugal force.. Imagine yourself in a car which is taking a sharp turn. You tend to fall to the other side ( if the car door is open you'd fall out of the car) Is this because of inertia which opposes the sudden change in motion or is it because of...

Hello! I have a few doubts in circular motion and I'd really appreciate your help :) 1) There is a statement in my book ( I have attached images - the first one) according to which the only horizontal force towards the center on the vehicle is friction. I know that some centripetal force is...

Thanks a whole lot! I've finally got it! :D

I am not sure I get the concept of centrifugal force.. If we have a stone tied to a thread and we just spin it in a circle, and while we are spinning it in a circle, the thread breaks and the stone flies off tangentially. If we watch this motion from an inertial frame, which force will be...

According to Coulomb's third law of friction, the sliding friction if independent of the sliding speed. But if the sliding speed is very slow, wouldn't the sliding friction be more? The object's surface will get more time to interact with the surface of the floor and static friction can...

Yes! That is what I meant! Could you please elaborate on that? Also, the colours appear a little darker through lenses, what does that happen? Thanks! ( Wearing glasses for the first time, thus having weird doubts :P )

I was just wondering if a person wearing convex lenses looks at a light source... Will excess heat be generated in his eyes? As it is a converging lens.. Thanks!

thankyou :) also, why didn't this happen when i heated a similar bowl on a low intensity flame? is it related to the oxidation?

Today i was heating a bowl of soup..the intensity of the flame of the gas stove was quite high.. i observed that the bowl got burnt and when it cooled down a bit, i observed a band of colours..blue was the most prominent..i noticed the presence of violet, yellow and orange too.. I wish to know...

So we do not consider the coefficients but we do add the number of electrons according to the charge that needs to be balanced. But suppose that we have to figure out whether a substance is getting oxidized or reduced, then will consider the coefficient? For example, Cl2 + HC2O4(-1) --->...

Hello. I'm having some trouble balancing ionic equations.. Are we supposed to consider the coefficients of the reactants/products? I came across a contradiction in the examples given in my book : 1) Na + H(+1) → Na(+1) + H2 So in order to figure out the oxidation/reduction part, we...

We say that "heat is developed" in resistors when electric current flows through them..But we define heat as the tranfer of energy due to difference of temperature. So is saying that " heat is developed" technically correct?

Homework Statement Find the equivalent resistance between the points A and B of the network shown in figure ( file has been attached ) Homework Equations Req( series) = R1+ R2 + R3 .. + Rn 1/Req ( parallel) = 1/R1 + 1/R2 + 1/R3 .. + 1/Rn The Attempt at a Solution We have to find...

I have recently learned how to balance chemical equations using the ion electron method. However, I have some doubts.. Suppose the reaction takes place in an acidic medium; now how can we say that we are allowed to add an H+ or H2O molecule? I mean, where will these elements come from when...

I have another doubt. The force which the cube will exert on the bottom will be equal to : pressure*area , i.e., (height*density*gravitational acceleration) * area of the bottom. Won't this force vary in the two cases? where in case 1, air is the fluid(density almost negligible) and in case 2...