Robin hood is pursuing a lackey of the sheriff of notingham. the lackey hides behind a bale of hay. robin hood fires an arrow into the hay and notes that the arrow has only penetrated half way. how much faster must the arrow be fired to go through? if the bow works like a simple spring, how much farther back must he draw the bow to do this, compared to the initial pull? 2. a 0.2 kg cannon ball is fired at an upward angle of 45° from the top of a 165 m cliff with a speed of 175 m/s.

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

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physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).