What happens to the air temperature of a descending mass of air?

What is the second most abundant element in the universe?

Suppose the same amount of heat is applied to two bars. they have the same mass, but experience different changes in temperature. are the specific heat capacities the same for the two bars? explain.

What type of chemical equation is represented in the following 2KCl + Pb (NO3) 2 → 2 KNO3 + PbCl2

During test-out procedures, a 239Pu-fueled thermal reactor is operated for a time at a power of 1 megawatt. The power is then to be increased to 100 megawatts in 8 hours.

Using the periodic table, determine which material is most likely to be a good insulator.

Two persons are applying forces on two opposite sides of a moving cart. The cart still moves with the same speed in the same direction. What do you infer about the magnitudes and direction of the forces applied?

SI unit of mass and gravity

What is the difference between porosity and permeability

In the diagram below, the planets' relative distances from the Sun are shown. The sizes of the planets are not drawn to scale.

Should athletes be benched if their grades are too low, or should they be allowed to play anyway?