A50-g ice cube at 0ºc is submerged into a container of liquid nitrogen. how many kg of nitrogen evaporates if it is at its boiling point of 77k and has a latent heat of vaporization of 200 kj/kg? the specific heat of ice is 2100 j/(kg ºc).

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

Part 1: a magnetic levitation or maglev train rides rails without touching them. explain how this works using your data. include the appropriate magnet drawing in your answer. part 2: two objects are near a bar magnet. one is about 1 cm away, while the other is 6 cm away. compare and contrast the magnetic force that affects each object. use your data to answer the question

On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s.t.p.?