C because the stack of paper was divided into 4
<h2><u>FORMAT</u><u>ION</u></h2>
Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. The cloud collapsed, possibly due to the shockwave of a nearby exploding star, called a supernova. When this dust cloud collapsed, it formed a solar nebula—a spinning, swirling disk of material
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Out of the four the last one is true - "<span>radiation may stick around for a long time and cause cancer". The other three are false - some effects will be long-lasting, they may affect large areas, and are not necessarily apparent immediately.</span>
Answer:
110.7 J
Explanation:
Hooke's law is represented by the formula:
F = ke where F is the force in Newton, K is force constant and e is extension in m
work done = 1/2ke² = 1/2 K ( e² - e₀²) and e₀ is the extension at relaxed length
e₀ =0
work done = 0.5 × 82N/m × (2.70 m)² = 110.7 J
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