3) If light that normally travels at 299,000,000m/s only travels at 200671141 m/s through a material. What is the material most likely made out of? (use the table)
Indexes of Refraction
Air: 1.00
Barium Glass: 1.60
Water 1.33 Crown Glass: 1.52
CR39: 1.50 Polycarbonate: 1.59
Diamond: 2.45 Flint Glass: 1.70

1.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the mass defect of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev 2.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the binding energy of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev 3.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the binding energy per nucleon of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev

Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2