Assume that water and steam, initially at 100°c, are cooled down to skin temperature, 34°c, when they come in contact with your skin. assume that the steam condenses extremely fast. assume the heat capacity of liquid water and steam is c=4190j/(kg*k).
how much heat h1 is transferred to the skin by 25.0 g of steam onto the skin? the latent heat of vaporization for steam is l=2.256

Suppose water is leaking from a tank through a circular hole of area ah at its bottom. when water leaks through a hole, friction and contraction of the stream near the hole reduce the volume of water leaving the tank per second to cah 2gh , where c (0 < c < 1) is an empirical constant. a tank in the form of a right-circular cone standing on end, vertex down, is leaking water through a circular hole in its bottom. (assume the removed apex of the cone is of negligible height and volume.) (a) suppose the tank is 20 feet high and has radius 8 feet and the circular hole has radius 2 inches. the differential equation governing the height h in feet of water leaking from a tank after t seconds is dh dt = − 5 6h3/2 . if the height of the water is initially 8 feet, how long will it take the tank to empty? (round your answer to two decimal places.)

True or false graphs must include scales that increase by the same amount

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.