Identify the names of two atoms that have a combined total of 23 protons. (no links or else u will be reported)

Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?