Answer:
- Our final answer is 15 kg .
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Should be C). metamorphic rocks change when heat and pressure are applied like coal into a diamond.
<span>Any material that allows thermal energy to pass through easily is a conductor
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Let u = the vertical speed at launch, m/s
g = 9.8 m/s², acceleration due to gravity.
Part (a)
After 2.4 s, the vertical speed is 10 m/s.
Therefore
(10 m/s) = (v ft/s) - (9.8 m/s²)*(2.4 s)
v = 10 + 9.8*2.4 = 33.52 m/s
Answer: 33.52 m/s upward
Part (b)
After 5.1 s, the vertical speed is
(33.52 m/s) - (9.8 m/s²)*(5.1 s) = -16.46 m/s.
This means that the rock reached the maximum height and began falling downward.
Answer: 16.46 m/s downward
<span><u>Answer
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The size off the motorcycle.
<u>Explanation
</u>
A size of the motorcycle make it difficult for the drivers to judge its speed and distance. Is the speed is high the distance decreases very fast if the speed is low the distance decreases slowly. The small size of the motorcycle makes it so difficult to determine the speed and distance.
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