When you click the tool menu , along with a stopwatch and rulers, you will see two tools you may not have used before. Clicking the dot tool will bring up a marker like this: . You can drag the marker to mark a position such as the starting point of the puck. The 2 on the tool means that you can place up to 2 markers. This can be useful for marking the starting and ending points for the puck.
Clicking line tool will bring up a horizontal line you can drag into place. This can be useful for measuring changes in height since the puck moves horizontally and vertically.
4.
Without collecting any data, describe the motion of the puck while it is on the curved portion of the ramp. Assume we can ignore friction. Be sure to include words like "velocity" and "acceleration".

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.

While studying chemical reactions and conservation of matter, sarah's class conducted a variety of experiments. sarah and her lab partner found the mass of a wax candle and placed the candle in a flask. the students lit the candle and let it burn to completion. all that was left was wax and charred candle wick. per their teacher's instructions, the students found the mass of the products. their data can be seen in the data table. formulate a hypothesis the students could test to explain why the experiment did not support the law of conservation of matter. a) the students could repeat the experiment using different candles; there might have been a flaw in the candle. b) the experiment should be repeatable. the students should run several trials and then take an average of the after mass in each trial. c) the students should have someone in the class check their measurement skills as they repeat the experiment. they may have made an error using the balance. d) the students should burn the candle in a container that has some type of lid so that any gas that is a product of the reaction can be contained and massed. submit

True or false graphs must include scales that increase by the same amount