Exam_2_2006_A4_key

# Exam_2_2006_A4_key - EAS 1600 INTRODUCTION TO ENVIRONMENTAL...

This preview shows pages 1–3. Sign up to view the full content.

EAS 1600 - INTRODUCTION TO ENVIRONMENTAL SCIENCES Fall, 2006 Exam 2 – 10/27/06 < Answer all Questions < Show all your work and be sure and report units where appropriate < Place your name on each page < This is a closed-book exam; all are expected to comply with Georgia Tech Honor Code I am aware and in compliance with the Georgia Tech Honor Code Signature: ____________________________________________________________ Print Name: ___________________________________________________________ Lab Section: ___________________

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
1. How does photosynthesis export atmospheric CO 2 to the deep ocean? (5 pts) Plants use sunlight to make organic material by combining water and carbon dioxide and in the process make oxygen (photosynthesis). But phytoplankton is denser than water, so eventually they sink and decompose (releasing CO2) in deeper waters. 2. You are at the beach for spring break and decide to shoot a bullet into the air. If the bullet falls back to Earth what is its velocity just before it hits the ground. You can assume the bullet is a sphere with a diameter of 1 cm and a density of 10 g cm -3 . (10 pts) W D = g V v A bullet bullet air ρ ρ = 2 4 . 0 2 3 2 3 4 2 3 2 2 8 . 9 ) 10 5 . 0 ( 14 . 3 3 4 10 1 2 . 1 ) 10 5 . 0 ( 14 . 3 4 . 0 s m m m kg v m kg m × × × × × = × × × × × s m v / 87 . 36 = if they used r = 1 cm then v = 52.1 m/s (8 points) 3. An air parcel contains a cloud with 20 grams of ice. As the air parcel descends the
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern