Achild’s toy sits on the bottom of a swimming pool in which the water depth is d=1.8 m. to a child standing at the pool edge, the toy appears to be a horizontal distance of 4.2 m away from the sidewall. assume the child’s eyes are 3.5m above the bottom of the pool. what is the actual horizontal distance from the sidewall to the toy?

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

The heliocentric and the geocentric models of the solar system included these central principles

You can decrease the resistance of a length of wire by