You need to design an experiment to measure the free-fall acceleration. you have an inclined plane made of steel and several objects that you may place on the plane. the plane is fixed at 45°. you have a teflon-coated block with a mass of 0.5 kg, a cart with steel wheels and a mass of 1.5 kg, and a steel box with a mass of 0.75 kg. you have a sonar device to measure the acceleration. you are to place one or more objects on the plane and measure their acceleration along the plane. does it matter which object or objects you choose? if not, why not? if so, which would you use? explain your answer.

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes

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

If a balloon is taken outside on a very cold day, what will occur?