Put the following events into the correct order in which they are thought to have occurred according to the impact hypotethesis.
Answer:
FIRST
-impact
-debris and tsunami devastate North America
-soot released by global forest fires
-long global winter
-extinction of large fraction of all species
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Heat is simply another word for
A) temperature. B) thermal energy. C) both of these D) none of the above
What does CCD stand for?
A. cosmic-ray channel detector B. charge collecting device C. channel-coupled detector D. charge-coupled device
Your lungs hold 4.2 L of air at a pressure of 101.3 kPa. If you are holding your breath and dive into a pool to a depth of 5.0 m below the surface of the water,
what is the volume of the air in your lungs assuming that the temperature remains the same? A) 2.8 L B) 2.9 L C) 3.2 L D) 3.3 L E) 3.5 L
A proton and an alpha particle are moving perpendicular to a uniform magnetic field with the same speeds. If the velocity of the proton is at an angle of 20° with respect to the magnetic field direction, at what angle to the magnetic field direction would the alpha particle be moving if it experiences the same magnitude magnetic force as the proton? The alpha particle has 4 times the mass of the
proton and twice its charge. a. 10° b. 62° c. 43° d. 9.8°