1. What are the three eras of the Phanerozoic Eon? Cenozoic, Mesozoic, Paleozoic v
2. During which Epoch did humans first appear?
Holocene
3. How many million years ago did humans first appear?
1.8 million years ago
4. What are the three periods of the Mesozoic Era?
Cretaceous, Jurassic, Triassic
5. When did dinosaurs first appear?
Triassic period
6. In what period did birds first appear?
Jurassic
7. During what period did the dome-like uplift of the Adirondack region begin?
Cretaceous
Topic: Absolute Dating

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j

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

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.