What meal can you get from standing on a hot sidewalk riddle answer?

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

Which of the following are appropriate acceleration units?

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.