- How many hours do archaeologists work?

Discover Questions

Balance the following equation: 7 over 3 next to Li + - → 4 over 2 next to He + 4 over 2 next to He? A photon has a wavelength of 293 nm. Calculate the energy of the photon in joules. Enter your answer in scientific notation.? Is the Solar System headed towards, or away, from the Crab Nebula? Since UV rays only span to exist to 420nm and UV rays damage cell tissue, do wavelengths greater have the same damaging effects? Is there a 7.91 x 57 cal. ammo ?