Diploë is spongy bone found in ________ bones.

A chamber within a bone, normally filled with air, is a ________.

A 4-kg box released from rest slides down a slope that makes an angle of θ = 30° with the horizontal, as shown in the figure below.  The coefficient of kinetic friction

For this exam, I make the following truthful statements: I have closed all applications powered by AI and all browser tabs, except for the one used to take this exam.  I have not received, I have not given, nor will I give or receive, any assistance to another student taking this exam, including discussing the exam with students in another section of the course. I will not use any non-instructor approved electronic device or written (or printed) materials to assist me on an exam. I will not plagiarize someone else’s work and turn it in as my own. I will not make any attempt to copy this exam via any means, including, but not limited to, copying down questions by hand, taking screenshots, or using my phone or other devices to take pictures of the exam. Posting exam content to external sites like CourseHero, etc. is also considered a violation of U.S. federal copyright law and can carry significant legal penalties our court system.  I understand that acts of academic dishonesty may be penalized to the full extent allowed by the The University of Texas at Austin, including receiving a failing grade for the course. I recognize that I am responsible for understanding the provisions of the The University of Texas and McCombs honor code as they relate to this academic exercise. By continuing with this exam, you agree to the above terms.

A rocket ship parked at rest in space suddenly explodes into 3 equal-mass pieces traveling in the directions shown. If the piece traveling upward has a speed of 150 m/s, what are the magnitudes of the x components of the other two pieces?

Two boxes move at a right angle to each other on a frictionless surface, as shown in the figure below. The mass moving along the x-axis has a mass of 6.0 kg and a speed of 10 m/s. The mass moving along the y-axis has a mass of 4.0 kg and a speed of 20 m/s.  The directions of the two velocity vectors are indicated in the figure. The boxes collide and stick together after the collision. What is their common speed after the collision? 

Ice age sea level change:  Recall that sea level is where the top surface of the ocean meets the land.  It is affected by the height of the ocean and by the height of the land.  Either one can move up or down. a) What is one major reason why global sea level (eustatic sea level) changes between glacial and interglacial periods? b) Why do glaciers/ ice fields cause sea level to change by different amounts (tens to hundreds of meters) in some regions compared with others? bonus) what is a second major reason why global sea level changes between glacial and interglacial periods?

The size and shape of ocean basins change over time.   Imagine that ocean basin A currently covers a larger area than ocean basin B.  Using the concepts of diverging and converging plates, suggest two (2) possible histories that explain how/why ocean basin A covers a larger area than ocean basin B. Be sure that the words divergent (diverging) and/or convergent (converging) are used in each response. 1.  2. 

Open your list of running applications (your screen will be recorded, and this list will be reviewed) PC users: Press Ctrl + Shift + Esc to open Task Manager. Click “Name” to sort apps alphabetically (A -> Z). Mac users: Press Command (⌘) + Option + Esc to open Force Quit Applications. Chromebook users: Press Search + Esc to open Task Manager. Click “Task” column to sort apps alphabetically (A -> Z). Scroll through the list of running applications to confirm only necessary programs are open. Please move slowly through the entire list so everything is clearly visible. Skipping or failing to show all applications will flagged. 

Seafloor mapping:  The two modern methods of mapping the seafloor (water depth) are echo sounding (sonar) satellite altimetry 1. Explain how echo sounding works (2-4 sentences).  Be sure to include what is measured how these measurements are converted to water depth. 2. Briefly state one advantage of using satellite altimetry over echo sounding.