Sara and Saba are identical twins who are the same in every way, including their weights. One day, Sara and Saba decided to go for a walk in the snow. They got dressed, and then Saba put on her favorite red heels. Meanwhile, Sara, who had always been more practical, put on her snowshoes. As soon as they stepped out onto the snow, Saba's heels sank right through while Sara had no trouble walking on top of the snow in her snowshoes!

Q1: Why do you think this happened? If Sara and Saba weigh the same and are exactly of the same size, why did Saba fall through the snow while Sara did not?

Q2: Calculate pressure under Sara’s snowshoes.

Q3: How is pressure useful in everyday life? Give an example.

Q4: State the factors affecting pressure.

Q5: How do snowshoes help a person to walk easily on soft snow?

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

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

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?