Waxy appears to increase by j nometers per second. por example, using use w we would expect that a galaxy at a distance of 2 mpc from earth would have a torresponding to a radial velocity of 130 km/s. ab 19: redshift exercise due on dec 12 at 11 pm pst | no submissions | 1 attempt remaining counts toward crade which of the following statements is not true: light moving from a source moving toward the observer will have a higher frequency than if the source were at rest with respect to the observer. the value of hubble's parameter, h, is determined by measured redshifts of spectral lines for distant galaxies. hubble's parameter, h, is used to estimate both the universe's size and age. according to hubble's law all galaxies must be moving away (receding) from our own. incorrect incorrect try another version 1 question attempt remaining

Study guide for unit 2 ~ lesson 3 ,4, & 5 test, thursday, january 24th lesson 3 vocabulary erosion - deposition - landform- weathering- short answers 1. how do volcanic islands form? 2.why is deposition likely to occur outside a river bend? 3. in what conditions does soil form fastest? 4. which 2 earth’s systems interact to form a coral island? 5. a beach growing in size is most likely the result of 6. which type of islands are formed when a chunk of land breaks off from a larger landmass? long answers explain how plants can grow in small cracks of rock that do not appear to contain soil. lesson 4 vocabulary pollution - toxic - short answers 1. most farmers pollute soil by purposefully adding 2. what is the benefit of contour plowing? . 3. using nuclear power to produce electricity can cause water pollution by 4. why do scientists predict humans will run out of fossil fuels someday? 5.farmer spray crops with fertilizer and weed killer to the crops grow. how might this affect the hydrosphere? list two different ways you use fossil fuels. 1- 2- what are two other energy sources scientists and engineers are researching? 1- 2- lesson 5 vocabulary decompose- recycling - short answers 1. which of earth’s systems do you interact with when you wash your hands? 2. which of earth’s systems is polluted by exhaust gases from buses pollute? 3. why is it important to dispose of electronic devices properly? 4. where do people interact with all four of earth’s systems?