Tina and her puppy are tugging on a rope each pulling on opposite ends when is tina doing work ? when is tina doing work ?

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

Which magnetic property best describes a magnet’s ability to act at a distance? magnets are dipolar. magnets attract only certain objects. magnets have magnetic fields. magnets can transfer their properties to certain materials.

During which step of the scientific method does a scientist make an educated guess about the outcome of an experiment? a. form a hypothesis b. analyze the results c. design an experiment d. collect data