What do elements in the same column of the periodic table usually have in common? a. same number of electrons in their outer shells b. same atomic number c. same number of electron shells d. same atomic mass

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 are the similarities & differences between a thermistor and a light dependent resistor in physics?

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m