Hui

A hollow spherical iron shell floats almost completely when submerged in water. The outer diameter is 50.0cm, and the density of iron is 7.87g/cm^3. Find the inner diameter.

At a certain harbour, the tides cause the ocean surface to rise and fall a distance d(from highest level to lowest level) in simple harmonic motion, with a period of 12.5h. How long does it take for the water to fall a distance 0.250d from its highest lev...

The function y(x,t) = (15cm )cos(pi x -15t pi), with x in meters and t in seconds, describes a wave on taut string. What is the transverse speed for a point on the string at an instant when that point has the displacement y=+12cm?

Daily water intake (including water used in drinks such as coffee, tea and juice) for Canadian adults follows a normal distribution with mean $\var{mu}$ litres and standard deviation $\var{sigma}$ litres. a) What is the probability that the mean daily wat...

almost completely submerged in water.*

14 22