A new planet is discovered to have diatomic deuterium molecules. On this planet the molecular force constant is found to be 157.79 N/m, and the atomic mass of deuterium is 2.14 amu. Calculate the vibrational energy difference, in cm-1, between the n

Aprojectile is launched from ground level with an initial velocity of v 0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s equals negative 16 t squared plus v 0 t. find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v 0equals112 feet per second. (a) find the time(s) that the projectile will reach a height of 192 ft when v 0equals112 feet per second. select the correct choice below and, if necessary, fill in the answer box to complete your choice.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.