According to Newtons second law of motion, the sum of the forces that act on an object with a mass (m) that moves in an acceleration (a) is equal to m times a. An object whose mass in 80 grams has an acceleration of 20 meters per seconds square.

What calculation will give us the sum of the forces that act on the object, in Newton’s (which are kg×m/s^2)?

A. 80 × 20

B. 80 × 1000 × 20

C. 80/1000 × 20

D. 80/60^2 × 20

Which of the above

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?