Physics, 04.09.2020 20:01 Richelleypinelley
An object is released from rest near a planet’s surface. A graph of the acceleration as a function of time for the object is shown for the 4 s after the object is released. The positive direction is considered to be upward. What is the displacement of the object after 2 s?
Answers: 2
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The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage
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Which sound characteristic is not affected by the relative motion of an object
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Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost
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Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?
Answers: 2
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