Physics, 30.06.2019 15:30 reaperqueen21
Carbon-14 is used to determine the age of ancient objects. if a sample today contains 0.060 g of carbon-14, how much carbon-14 must have been present in the sample 11,430 years ago? the half-life of carbon-14 is 5730 years.
Answers: 1
Physics, 21.06.2019 17:10, Naviascales1681
Aseries circuit consists of a resistor with r = 20 ? , a capacitor with c = 0.01 f, and a decaying battery with e = 300e? 5t. if the initial charge is 0, find the charge as a function of time t
Answers: 2
Physics, 22.06.2019 05:30, alexportillo859
Blank liquids and gases exert a buoyant force on objects placed in them
Answers: 3
Physics, 22.06.2019 08:00, booitsmrradl3385
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
Answers: 2
Physics, 22.06.2019 14:30, darceline1574
Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil
Answers: 2
Carbon-14 is used to determine the age of ancient objects. if a sample today contains 0.060 g of car...
Mathematics, 19.03.2020 07:23
Mathematics, 19.03.2020 07:23
Mathematics, 19.03.2020 07:23
Mathematics, 19.03.2020 07:23