1. In general chemistry you learned that oxidation meant any reaction that involves loss of electrons, but in organic chemistry oxidation often refers to an earlier, more literal, definition of the terms in this experiment. What is this earlier, classical definition of oxidation

In organic chemistry oxidation is the gain of oxygen atoms by any carbon atom or molecules.

Explanation:

Oxidation can be defined in multiple ways

1- Loss of electron

2- Increase in oxidation number

3- Loss of  hydrogen

4- Gain of oxygen atoms

The last definition is  the earlier one in organic chemistry.

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first let us lay out the formula for potential

and kinetic energy:

pe = mgh

ke = (mv^2)/2

where: m=mass, v=velocity, g=gravitational

acceleration, h=height

calculating for mass using the known values of

pe:

340j = m (9.81 m/s^2) (50ft) (1m/3.28ft)

m = 2.27 kg

the law of conservation of energy states that

energy is neither created nor destroyed. therefore, the change in kinetic

energy from 50 ft to 35 ft would be equal to the change in potential energy

from 50 ft to 35 ft. however it would be opposite in signs since one is losing

while other is gaining.

ke(35ft) – ke(50ft) = - [ pe(35ft) – pe(50ft]

ke(50ft) = 0 since the brick is initially at rest

ke(35ft) = 340j - 2.27kg (9.81 m/s^2) (35ft)

(1m/3.28 ft)

ke(35ft)

= 102.38 j