1. Cenozoic ERA
2. Mesozoic ERA
3. Paleozoic ERA
(a) The momentum of the proton is determined as 5.17 x 10⁻¹⁸ kgm/s.
(b) The speed of the proton is determined as 3.1 x 10⁹ m/s.
<h3>
Momentum of the proton</h3>
The momentum of the proton is calculated as follows;
K.E = ¹/₂mv²
where;
- m is mass of proton = 1.67 x 10⁻²⁷ kg
- v is speed of the proton = ?
<h3>Speed of the proton</h3>
v² = 2K.E/m
v² = (2 x 50 x 10⁹ x 1.602 x 10⁻¹⁹ J)/(1.67 x 10⁻²⁷)
v² = 9.6 x 10¹⁸
v = 3.1 x 10⁹ m/s
<h3>Momentum of the proton</h3>
P = mv = (1.67 x10⁻²⁷ x 3.1 x 10⁹) = 5.17 x 10⁻¹⁸ kgm/s
Learn more about momentum here: brainly.com/question/7538238
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Answer:
Well techinacally it is because the glass is a different density than the surrounding air. So it cannot be C. I am not sure between A and B, but I would assume that it is B since glass is a solid and solids have higher densities than air.
Explanation:
A. Golf ball because it has the most mass and will travel faster when felling
Answer:
D. A mass extinction may happen when a comet or asteroid impact starts a chain of events that blocks sunlight for weeks or even years.
Explanation:
Mass extinction: An event in the history of the Earth when a large portion of the living species become extinct. Mass extinction has happened a lot of times and every time life finds a way to come back, evolve and adapt to the new conditions.
The proofs of closest extinction can be found in the extinction of dinosaurs. Widely accepted reason behind this extinction is thought to be strike of a comet or an asteroid around 65 million years back. Because of this impact a chain of event started. A lot of dust and gases was filled in the atmosphere which blocked the sunlight to reach Earth for around 2-3 years.