Predict how the strength of the force between the cars changes when the wedges are taken away and the cars are allowed to move. Justify your prediction

You want to lose weight and have been trying to decide which type of fad diet is best for you. you ask your doctor, who responds that a. fad diets are a temporary fix but generally don't have any side effects b. fad diets can be used several times a year to maintain a healthy weight c. fad diets can be risky for your health and, in the long run, do not work d. fad diets should never be used one right after the other; there should be a break between them select the best answer from the choices provided. a b c d

What structural formula represents 4 electrons shared between two atoms?

Use vsepr theory to predict the molecular geometry of the molecule hcn.