Virtual, upright, and larger than the object. :)
Strontium has 2 valence electrons since it is in group 2
The total mechanical energy is the sum of the kinetic energy and the gravitational potential energy:

where m=3.5 kg is Candy's mass, v=1 m/s is her velocity and h=3.5 m is her height. If we replace these numbers, we find the mechanical energy of the system:
The answer is C because thats what the answer is so good luck in the class
"Traditionally, physical science courses are categorized into four areas: physics, chemistry, earth sciences, and space sciences. It is important to understand that the arbitrary divisions of specialized knowledge are integrated into a basic overview of the physical laws that govern our universe." - Cameron University