the top of early get frozen at place where the surrounding air is at a temperature of minus 20 degrees celsius what will be the temperature of the layer of water in contact with the lower surface of an ice block and at the bottom of the lake​

Which transition by an electron will release the greatest amount of energy? oa ob oc od

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.

An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?