Which statement did John Dalton make about atoms?
A. there are distinct kinds of atoms
B. th...
Answers: 3
Physics, 22.06.2019 17:40, sosaucyy
Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.
Answers: 2
Physics, 22.06.2019 23:30, angoraspinner
Sound travels slower in colder air that it does in warmer air. make a claim about the effect of air temperature on the speed of sound. support your claim with evidence
Answers: 3
Physics, 23.06.2019 00:30, shashayantie6556
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
Answers: 3
Mathematics, 09.11.2019 11:31
Mathematics, 09.11.2019 11:31
Mathematics, 09.11.2019 11:31
Mathematics, 09.11.2019 11:31
English, 09.11.2019 11:31