1. A crane lifts 300.5 kg to a platform that is 1.9 m above the ground. How much work is done? (HINT: 1" convert the
mass (kg) into newtons (force), then solve for work.)

Work = 5595.31J

Explanation:

Mass = 300.5kg

Distance (h) = 1.9m

Acceleration due to gravity (g) = 9.8m/s²

Work done on an object is the product of the force applied over the distance the object is moved.

Work = force * distance

Force = mass * acceleration (a or g)

F = m* g

F = 300.5 * 9.8

F = 2944.9N

Workdone = force *distance

Work = 2944.9 * 1.9

Work = 5595.31J

The work done is 5595.31J

the electronic configuration of an atom with eight electrons is 1s²2s²2p⁴. the orbital diagrams are shown in the figure.

as per the hunds rule:

1. electrons tend to avoid being in the same orbital as per as practicable.

2. electrons in different orbitals of the same energy will have their spin parallel.

this can be illustrated from the multiplicity of the orbitals of the atom. as there are four electrons in the p orbital and p orbital has 3 sub-shells. the electrons can be fed in different ways as shown in the figure but the correct orbital diagram will be as per the hunds rule.

since electrons are negative the answer is neagtaive