Why do plants on the floor of a rainforest often have reddish-colored leafs? A, to help absorb as much sunlight as possible.
B, to camouflage themselves from predators.
C, to attract pollinators
D, To warn animals that the leaves are poisonous.
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Madison pushes with a 210-n horizontal force on a 24-kg crate of coffee resting on a warehouse floor. the force of friction on the crate is 74 n. what is the acceleration?

Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.

What happens when a rubber rod is rubbed with a piece of fur?