Sir Percival and his horse are standing still on a field of honor when Sir Rodney, atop his steed gallops by with a constant velocity of 3.00m/s. He flips Percival off as he passes by! Percival instantly begins to give chase with an acceleration of 0.600m/s2. Using Percival’s at rest position as zero, determine the time it takes for Percival to catch up to Rodney. a. 4.0 s
b. 6.0 s
c. 8.0 s
d. none of these

Which component of the earth’s atmosphere is decreased due to photosynthesis?

1. when conducting a test on what kind of music increases the growth of plants, all of the following would fail to meet to fair test standard except (1 point) using different kinds of plants. giving some plants more water than others. exposing the plants to different types of music. using nutrient-rich soil for one and lesser soil for others. 2. engineering uses scientific thinking to solve real-world problems. (1 point) true false 3. what does it mean to test a hypothesis? (1 point) pass a quiz on other scientists’ results analyze only the results from scientific sources not make assumptions about how an experiment will turn out see if the results of an experiment are what the scientist predicted

Ball bearings are made by letting spherical drops of molten metal fall inside a talll tower-called a shot tower- and solidify as they fall. a-if a bearing needs 4.0 s to solidify enough for impact, how high must the tower be? b- what is the bearing's impact velocity?