A tennis ball is thrown vertically upward with an initial velocity of +3.0 m/s. a. What will the ball's speed be when it returns to its stating point?
b. How long will the ball take to reach its starting point?
c. Find the maximum height reached by the ball.

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Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?