Need answer asap will mark brainliest you are walking toward the back of a train that is moving forward with a constant velocity. the trains velocity relative to the ground is 30 m/s forward. your velocity relative to the train is 1.5 m/s backwards. how fast are you moving relative to the ground

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