ขอต้อนรับ ผู้มาเยือน กรุณา ล็อกอิน หรือ สมัครสมาชิก

ล็อกอินด้วยชื่อผู้ใช้ รหัสผ่่าน และระยะเวลาใช้งาน

 
Advanced search

41508 Posts in 6267 Topics- by 9454 Members - Latest Member: rin
Pages: 1   Go Down
Print
Author Topic: GR9277.038  (Read 2392 times)
0 Members and 1 Guest are viewing this topic.
conantee
SuperHelper
*****
Offline Offline

Posts: 1400

เราเป็นอย่างไร สังคมเป็นอย่างนั้น


« on: January 10, 2010, 07:09:41 AM »

38. Tau leptons are observed to have an average half-life of \Delta t_1 in the frame S_1 in which the leptons are at rest. In an inertial frame S_2, which is moving at a spped v_{12} relative to S_1, the leptons are observed to have an average half-life of \Delta t_2. In another inertial reference frame S_3, which is moving at speed v_{13} relative to S_1 and v_{23} relative to S_2, the leptons have an observed half-life of \Delta t_3. Which of the following is a correct relationship among two of the half-lives, \Delta t_1, \Delta t_2, and \Delta t_3?
(A) \Delta t_2 = \Delta t_1 \sqrt{1-(v_{12})^2/c^2}
(B) \Delta t_1 = \Delta t_3 \sqrt{1-(v_{13})^2/c^2}
(C) \Delta t_2 = \Delta t_3 \sqrt{1-(v_{23})^2/c^2}
(D) \Delta t_3 = \Delta t_2 \sqrt{1-(v_{23})^2/c^2}
(E) \Delta t_1 = \Delta t_2 \sqrt{1-(v_{23})^2/c^2}
« Last Edit: January 13, 2010, 01:33:54 AM by conantee » Logged
Pages: 1   Go Up
Print
Jump to: