When looking at first arrival times in a seismic refraction survey, what relationship between the layer velocities allow us to determine the velocity of layer 3 and know that it is in fact the velocity for layer 3? a. V1 < V2 < V3 b. V2 < V1 < V3 c. as long as V2 > V3 d. V1>V2

The plot below shows ray paths and arrival times for P-wave seismic signalsrecorded at a geophone located 60m from a source.a. Using the plots below, what can you deduce about the relationshipbetween the velocities of each of the layers?b. Imagine you can extend the spread of geophone to some large offset. From your answer above, would you expect to see the refracted wave alonglayers as first arrival?

e A-Classilying x upp.acceler atebaming.com/ studenta ssignments/14358 * ALI Globel Login A Classes 6 Hitchcock ISD O Student Assignmen. X Welcome to Edgen. y for Stude G google cla ssroom- Save Larger rocks are slowly eroded away by the elements on Earth. Question 3 A metamorphic rock can also be thought of as a rock that changes. What causes the rock to change? Layers of sediment building up over time and pressing down, forming rock. Rain, wind, freezing, thawing, and plant roots growing cause the rock to erode away, leaving behind sediments. Extreme heat and pressure from deep within Earth cause changes to the rock's appearance, structur and composition. The rock slowly changes into a new rock over time. Qestion4 Based on the context in paragraph 4, fossil refers to how igneous rocks were formed over time the remains of dead plants and animals settle to the bottom of an ocean or lake and are covered by mud a trace or print, or the remains of a plant or animal of a past age preserved…

3. Several years ago, NASA conducted the Lunar CRater Observation and Sensing Satellite (LCROSS) mission to look for evidence of water deep in craters near the south pole of the Moon (www.nasa.gov/mission_pages/LCROSS/main/index.html). Preliminary analysis of the LCROSS data has already demonstrated that there are indeed signifcant quantities of water on the Moon-a useful thing to know if we ever decide to build a permanent base on the Moon. The LCROSS spacecraft was launched from Earth aboard at Atlas V rocket on 18 June 2009. It was then sent on its way to the Moon by a Centaur transfer stage rocket. On 9 October 2009, while being observed by the LCROSS spacecraft, the Centaur rocket crashed into a crater at the south pole of the Moon creating a huge plume of Lunar dust. Instruments on the LCROSS spacecraft measured the spectroscopic properties of this dust and radioed this data back to Earth for analysis. Then, 4 minutes after the Centaur rocket impacted the Moon, the LCROSS…

13.44 A steel ball is released from rest in a container of oil. Its downward acceleration is a = 2.4 - 0.6v in/s², where v is the ball's velocity in in/s. What is the ball's downward velocity 2 s after it is released? Problems 13.44/13.45

How do you digitize a photo? Video source code creation: how?

1.) Gases in the atmosphere keep the temperature in a range to support life on earth. 2.) There is an exact place where the atmosphere ends.

bassign.net X Untitled document - Google Doc X + d/1PEwv_XgMnhSischCY6IngmjxmLQEz3U86qFNPsb6nZE/edit eatt... Login - Powered by... Yuzu GitHub Cengage: Digital Co... ols Extensions Help Last edit was seconds ago Arial 14 + B IU A E = E E 11213141516 An accelerograph records the acceleration of a train. Assume the train was moving in a straight line and the velocity of the train at t = 0 was 0 m/s. Some of the data values for the acceleration of the train are shown below. Answer the questions using this information. t (seconds) 0 1 2 3 4 a(t) (m/s2) 3 2 1 -1 -2 I 1) The table indicates that a(1) =2 m/s2. What does that tell you about the velocity? 2) The table indicates that a(3) = -1 m/s2. What does this tell you about the velocity? 3) When is the velocity of the train going to be the greatest? Defend your conclusion by clearly explaining your reasoning or approach to solving this problem. | O Ai Rain to stop E

5

You want to use radiometric dating to determine the age of a specimen. You use Isotope Z, which has a half-life of 645 years. You measure your sample and find that 1/16 of the original amount of Isotope Z is present. How old is the sample?