Recent content by alphabeta1720

my only confusion is whether it will be a total reading of 1300 or upthrust will be subtracted.

a beaker containing water is placed on the platform of a digital weighing machine. it reads 1100 grams. a metal body of density 8g/cc and mass 200 g is suspended in water in the beaker(without touching the walls of the beaker). it is attached by a suitable string fixed to some support. Now what...

Can anyone recommend books for Fluid Mechanics and Waves. I don't want a book that requires high amount of maths but a book that strengthens your concepts and thought provoking problems. Thanks

The Sun attracts all bodies on the Earth. At midnight, when the Sun is directly below, it pulls on an object in the same direction as the pull of the Earth; at noon, when the Sun is directly above, it pulls on an object in a direction opposite to the pull of the Earth. Hence, all objects should...

Because the Earth bulges near the equator, the source of the Mississippi River ( at about 50 N latitude),although high above sea level, is about 5 km closer to the center of the Earth than its mouth ( at about 30 N latitude). How can the river flow "uphill" as it flows south ?

OK! next I am going to do is to learn about them

So can we now say that after the wheel has started rolling there is no friction at the point of contact, and hence no acceleration and the wheel will continue to roll in the same manner?

refer to Pg 265 of Physics by Resnick,Halliday,Krane. In it its written that there is frictional force.

When an ideal wheel rolls without slipping on a horizontal floor there is a frictional force exerted at the instantaneous point of contact between the wheel and the surface in the opposite direction to motion. But this frictional force does no work on the moving wheel because the point of...

Thank you for that but can anyone help me solving these problems (Sorry, but I don't know about 'curl' and 'del' operators) Q1 Consider the two dimensional force F = f(x,y) i + g(x,y) j . Is it possible to determine whether this is a conservative force without any additional information...

Although I am aiming of the International level participation, but for that that I have to clear national level first.

A helicopter flies off, its propellers rotating. Why doesn't the body of the helicopter rotate in the opposite direction?

Is there any way to prove that a given force is conservative?

Hello! I am a high school student and I am preparing for physics olympiad and I need some help regarding resources. Talking about what I have done , I have read Physics by Resnick and halliday 5th edi both volumes.I have also read Thomas's Calculus(most part). and I am currently doing 'An...