Answer:
C. Distance 90 feet Displacement 0 feet
Answer:
12.6 seconds
Explanation:
With respect to the gazelle, the cheetah has a relative speed of 100 - 80 = 20 km/hr.
We convert from km/hr to m/s.
At this relative speed, the cheetah will overtake the gazelle in time <em>t</em> given by
<em>d</em> is the distance and <em>v</em> is the relative speed.
The Earth's atmosphere blocks the sun's rays as they travel toward us. The atmosphere's layers act as a filter, allowing just the radiation needed to support life to pass through while blocking the dangerous radiation from reaching the Earth's surface. Our globe is warmed by the sun's energy as it travels through the atmosphere, supplying light energy for photosynthesis and powering the biogeochemical cycles in the Earth's systems. The object that cannot pass through, on the other hand, is reflected back into space.
The global temperature does, however, increase as more heat is trapped by the atmosphere. Global warming is the name of this occurrence.
Global warming is the phenomenon that results in a change in our climate. Natural calamities like wildfires, flooding, and severe storms occur more frequently when this happens.
Learn more about atomsphere here:
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Conduction: someone burning their hand by placing their hand on a hot stove.
Convection: Food cooking in an oven.
Radiation: The heat we feel from the sun.
Slide is a inclined plane
Flag pole is a pulley
See saw is a lever