Physics4DExam1S10

Physics4DExam1S10 - DO NOT TURN THIS PAGE Name Physics 4D...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: DO NOT TURN THIS PAGE!!!!! Name: _________________________________ Physics 4D Spring 2010 Exam 1 MAKE SURE TO SHOW ALL WORK IN COMPLETE DETAIL. NO CREDIT WILL BE GIVEN IF NO WORK IS SHOWN. EXPRESS ALL ANSWERS IN SI UNITS. 1 1. Object 1, of mass 9m and moving at 0.8c, collides with object 2, of mass 12m and moving in the opposite direction at 0.6c. After the collision the two masses stick together. (10 pts) a) Find the speed of the resulting combined object. b) Find the mass of the resulting combined object. 2 2. The identical twins Speedo and Goslo join migration from earth to planet X. It is 30.0 ly away in a reference frame in which both planets are at rest. The twins, of the same age, depart at the same time on different spaceships. Speedo’s ship travels steadily at 0.98c, and Goslo’s at 0.70c. Calculate the age difference between the twins after Goslo’s spaceship reaches planet X. Which twin is older? (10 pts) 3 3. A person holds a 16 ft. pole. A barn has doors at both ends, 10 ft. apart. A barn has doors at both ends, 10 ft....
View Full Document

This note was uploaded on 09/02/2011 for the course PHYS 4D taught by Professor Luna during the Spring '11 term at DeAnza College.

Page1 / 5

Physics4DExam1S10 - DO NOT TURN THIS PAGE Name Physics 4D...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online