1. Intro to Physics Units
Introduction to Units
1. Intro to Physics Units Introduction to Units
36PRACTICE PROBLEM
A control tower operator detects a red light pulse emitted from an unidentified flying object (UFO) in the Earth's atmosphere at a speed of v. The control tower operator measures the pulse duration to be 1.3 s. A passenger on the UFO observes that the light pulse lasts for 1.1 s. i) Who measures the proper time interval for the duration of the pulse? ii) Express the speed v of the UFO in the Earth's frame as a function of the speed of light c.
A control tower operator detects a red light pulse emitted from an unidentified flying object (UFO) in the Earth's atmosphere at a speed of v. The control tower operator measures the pulse duration to be 1.3 s. A passenger on the UFO observes that the light pulse lasts for 1.1 s. i) Who measures the proper time interval for the duration of the pulse? ii) Express the speed v of the UFO in the Earth's frame as a function of the speed of light c.