For a particular experiment at the SLAC National Accelerator Laboratory, electrons are each accelerated to an energy of exactly 50 GeV. Note: You may assume that the rest mass of an electron is exactly 0.5 MeV/c^2 for this problem. Required:
a. What is the velocity of each electron?
b. The accelerator is 3km long. At the velocity in (a), how much time, as measured by the moving electrons, does it take the electrons to travel the length of the accelerator.
c. How long does the accelerator look from the perspective of the electrons?

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.

What is part of a line has one endpoint and continues in one direction?

The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656(red) and 486 (blue). light from a hydrogen lamp illuminates a diffraction grating with 500 lines per mm, and the light is observed on a screen 1.50 behind the grating. what is the distance between the first-order red and blue fringes?