Calculate the system enthalpy change when 36. 0 grams of water ice are converted to liquid after placing the ice at t=210. K in contact with a heating block maintained at t=370. K.

Your 249 ml cup of coffee is too hot to drink when served at 82 degree celsius. what is the mass of an ice cube taken from a -21 degree celsius freezer, that will cool your coffee to a pleasant 54 degree celsius. specific heat of the water is 4190 j/kg c, specific heat of ice is 2090 j/kg c, heat of fusion of ice is 3.33 x 10^5 j/kg

To create electromagnetic induction, which of the following has to move? a. a wire b. a magnet c. a transformer d. either a or b

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?