{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

solution1015

# solution1015 - ikram(ai2734 hw1015 Swinney(58785 This...

This preview shows pages 1–2. Sign up to view the full content.

ikram (ai2734) – hw1015 – Swinney – (58785) 1 This print-out should have 6 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points Planet X has seven times the diameter and seven times the mass of the earth. What is the ratio g X : g e of gravitational acceleration at the surface of planet X to the gravitational acceleration at the surface of the Earth? Correct answer: 0 . 142857. Explanation: Let : M x = 7 M e and R x = 7 R e . m g e = G M e m R 2 e g e = G M e R 2 e . Similarly, g x = G M x R 2 x . The ratio is g x g e = M x R 2 e M e R 2 x = 7 M e R 2 e M e (7 R e ) 2 = 1 7 = 0 . 142857 . 002 (part 1 of 2) 10.0 points G is the universal gravitational constant. g is the free fall acceleration at Earth’s surface. R E is the mean radius of the Earth. M E is the mass of the Earth. Very near the Earth’s surface, the gravita- tional attraction of the Earth on a body of mass m can be stated in terms of either g or G .

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

View Full Document
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