How can you determine a speed of a moving train? Choices

divide the distance traveled by the time spent moving

divide the time spent moving by the direction traveled.

multiply the distance traveled by the the time spent moving

Multiply the kinetic energy by the distance traveled

Six amino acids have side chains that are polar but not charged. these are serine (ser), threonine (thr), cysteine (cys), asparagine (asn), glutamine (gln), and tyrosine (tyr). these amino acids are usually found at the surface of proteins, as discussed in the proteins 2 module.

Your answer is going to be a. i know my biology