Correct answer only ! on a spring scale that measures force, a reading shows the force of an object to be about halfway between 7 n and 8 n. which of the following would be the most accurate measurement for the force? a. 0.0075 n b. 0.75 n c. 750 n d. 7.5 n

Obviously D. 7.5

Why?

Well, 7.5 is exactly between 7 and 8.

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.