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.

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

What is the name for the remnant of an asymptotic giant that has lost its shells? black dwarf white dwarf yellow giant black hole

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up