A rock at sea-level on Earth (where g = 9.81 m/s2) has a mass of 25 kg. What is the weight of the rock in Newtons?
Given: m = 25 kg; g = 9.81 m/s2
What will be an ideal response?
W = mg = (25 kg)(9.81 m/s2) = 245 kg-m/s2 = 245 N
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You survey two different forests—a natural forest that has oak, hickory,
chestnut, beech, and elm trees and an area planted entirely with white pine trees. In which forest would you expect to find the greater animal diversity? Why?
What will be an ideal response?What observations are made from the comparison?
What will be an ideal response?
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A) Better resistance to seizing B) Reduced friction C) Both A and B D) Neither A nor B
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A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B