Which method is the typical first step when scientists communicate their scientific results?

The correct answer is submission of the results to a scientific journal for  a peer review.

Explanation:

It is the responsibility of the scientists to submit their results to the scientific peer review journals after attaining the results from the experiments. This is very essential as it is the duty of the scientists to handle the journals in order to completely scrutinize the set of the experiments and the outcomes attained in order to make sure that they all are devoid of any kind of mistakes and there is validity in the results obtained.

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