Which of the following helps explain why experiments involving speed and velocity are important. A. Experiments involving speed and velocity are not important because they have already been throughly investigated by scientists and there is nothing more to learn

B. Experiments involving speed and velocity are important they have not been investigated much and scientists still do not fully understand how speed and velocity are related

C. Repeated experiments with airplanes and how their velocity changes as a result of environmental conditions like wind can help scientists develop a model for flight paths and launch times to minimize fuel usage

D. Repeated experiments that change motivational foods for tortoises on tracks can help scientists determine preferred eating habits

Talc (french chalk) is the ingredient

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic