Darren performed an experiment in which he measured the amount of force that was required to accelerate an object at a rate of 5 m/s2. then, he repeated his experiment four more times and calculated the average force that was needed. why did darren repeat his experiment? a. because all experiments are required to perform exactly five trials b. to figure out which procedure was best to use c. because he made a mistake in each of his previous trials d. to increase the reliability of his data

How do the nuclei of covalently bonded atoms keep the bond together

Which of the following are energy solutions that release pollution into the air>

Dr. kaylan is an ecologist who studies bird behavior. she sets up an experiment to test which type of food crows are most likely to eat when given a choice between walnuts, corn, and sunflower seeds. to perform her experiment, dr. kaylan places three food bins in an area frequented by cows. each bin contains one of the three food types. then, she measures how much of each food type is eaten every day for a month and summarizes the results of her experiment in the pie chart below. based on her results, dr. kaylan concludes that crows choose to eat corn more frequently than other food sources because it has a higher nutritional value. what is a reasonable alternate conclusion that can be drawn from dr. kaylan's data