Aforce of 250 n is applied to a 1 kg softball when struck with a bat. what is the acceleration

You will be galileo perform the experiment to determine if objects with different mass fall at the same, or different, rates in the air and in a vacuum. (refer to the walk-through video to locate the online lab within the online textbook).

Ascientific blank must be testable and capable of being proven false?

How does an observation about an object differ from an inference about that object