A large bottle with a siphon made of glass tubing .Compare the times taken to empty the bottle when it filled with water and then with petrol of specific gravity 0.8.use the viscosity of water and petrol to be 0.001 Pa. s and 0.002Pa. s respectively

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

The process of predicting values that extend beyond the range of data points is called absolute value extrapolation interpolation prediction for any given: )

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.