Answer:
Hello There!!
Explanation:
The answer is O False.
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<span>The
key word is "electric". If the power goes out during an earthquake,
items that run on electricity won't help you any. You need
battery-operated radios and flashlights, as well as extra batteries.
What are your answer choices?
</span>
It can be explained by the theory of Plate Tectonics.
From the question, The kinetic energy of the fired arrow is equal to the work done by the bale of hale in stopping the arrow.
We make use of the following formula
mv²/2 = F'd................... Equation 1
Where
- m = mass of the arrow
- v = velocity of the arrow
- F' = average stopping force acting on the arrow
- d = distance of penetration
Make F' the subject of the equation
F' = mv²/2d.................. Equation 2
From the question,
Given:
- m = 20 g = 0.02 kg
- v = 60 m/s
- d = 40 cm = 0.4 m
Substitute these values into equation 2
Hence, The average stopping force acting on the arrow is 90 N
Learn more about average stooping force here: brainly.com/question/13370981
