Recent content by mukundpa

Thanks for your comments. I will try to learn more about it.

Thanks but where is the food? I need it. :smile: I do not believe, I try to make logic and try to understand. In first equation x is negative and with increase in x the phase angle (wt - kx) decrease while in second x is positive and with increase in x phase angle (kx - wt) increases...

May be, but I think at a particular moment (t = constant) if we increase x the phase angle increases and as per I think with at a moment of time phase angle decrease in the direction of wave motion. Please let me now how you thinks that it is moving in positive x direction. .

I think a lot of confusion is there. I simply understand it by putting x = 0 and t = 0 as well as I think the phase decreases in the direction of wave motion. Thus y = A sin (wt - kx) wave moving in positive x direction and initially wave displacement (y) at origin is zero and increasing in...

With that think the units of R to be use.

T is absolute temperature and put proper units for R

If the ball is directly returning to the initial position position after the projectile motion than we may consider it as a projectile at the point it leaves the circle with velocity v and angle θ to the horizontal and then we can use equation of trajectory. Plugging the values of v and θ we can...

Let the velocity of the ball is v when it leaves the circle and its radius at that time is making angle θ with the upward vertical. Than the velocity v is given by conservation of energy as v2 = u2 - 2gR(1+ cosθ) At the point it leaves the track the normal reaction of the track just becomes zero...

a.State the speed u in terms of R and g b.Coordinate of the ball when it left the circle. I think there is no need to solve any projectile motion because the coordinate of the point where ball leaves the circle are required and before it is moving in circular path. Part a need the range of the...

As the value of x (in mm) is very small as compared to the screen distance L (in m) the angle theta is very small and for small angles sine of that angle is approximately equal to the angle measured in radius. Alternately for very small angle the arc length and the perpendicular is nearly same...

When the pressure in the syringe is 1 atm (equal to atmospheric pressure) what is the driving force to make the medicine move?

welcome.

The basic thing is that the two wires creates a magnetic field. The field midway the wires will be in the direction normal to the plane of the wires. this field will create a torque which try to rotate the needle. if the wires are not in the same horizontal plane as that of compass the field...

Yes, actually integration is the sum and we are here adding nothing which is varying with x. The distance x of P is a constant.

If the needle and the wires are in same horizontal plane, needle is exactly midway and the needle is free to rotate in a horizontal plane only. I this case the torque on the needle will try to rotate the needle in vertical plane but due to pivot it is not possible.