While running around the track at school, milt notices that he runs due east on the 100m homestretch and due west on the 100m backstretch. to train for the 800m event, he runs both the 100m homestretch and the 100m backstretch in 12.2 seconds. how do milt's velocities on the homestretch and backstretch compare? a) the homestretch and backstretch have velocities with the same magnitude only. b) the backstretch velocity is greater in magnitude than the homestretch velocity. c) the home stretch velocity is greater in magnitude than the backstretch velocity. d) the homestretch and the backstretch have velocities with the same direction and magnitude.

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

Which statement best explains why the overall charge on an atom is zero?

Nthe 19th century, women were expected to conform to a certain role that entailed a. gaining domestic skills and establishing a career b. going to college and getting married c. getting married and having children d. graduating from college and being a housewife