Students in a lab are doing experiments involving the motion of objects. They pull an object across a table a detector to measure the acceleration of the object for the entire time they pull it. The graph shows the
the detector, with four segments labeled.
2.
Acceleration
Time
For which segments of the motion is there a net force on the object? Explain how the graph indicates
your answer in the box provided.

All vaccination should(n’t) be mandatory! 1.at least 5 sentences explaining 2.why? 3.in the end summarize the sentence

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.

Which example best describes a reflex action? a. eating food when hungry b. coughing when the throat is irritated c. bending down to lift a heavy object d. going for a walk outside