Waves — Physics STD 11 Science — Question

Is it possible that a body could have constant speed but varying velocity?

Give the magnitude and direction of the net force acting on. A cork of mass 10g floating on water.

Is surface tension a vector?

Show the variation of pressure in the atmosphere with height in km. Considering that the density of air is not dependent on pressure.

Why is there difficulty in filling mercury in the capillary tube?

Two particles A and B start from rest and move for equal time on a straight line. The particle A has an acceleration a for the first half of the total time and 2a for the second half. The particle B has an acceleration 2a for the first half and a for the second half. Which particle has covered larger distance?

What is the efficiency of a Carnot engine operating between boiling and freezing points of water?

What does the slope of the velocity-time graph indicate?

Which waves will generate in vibrating wire of tunner frok?

State the boundary conditions of the dimensional equation.