An object falls from the Transco Towerin Houstonand takes 15 seconds to reach the ground. A.What is its velocity at impact if air resistance is ignored?B. How tall is the building?C. What is its acceleration at the 2ndsecond? D. What is its acceleration at the 5thsecond? E. If the Transco Tower were actually 3,000 meters tall, how long would an object take to free-fall off of the top of the building? (ignoring air resistance) Someone help please!!

Did the proton move into a region of higher potential or lower potential? did the proton move into a region of higher potential or lower potential? because the proton is a negative charge and it accelerates as it travels, it must be moving from a region of higher potential to a region of lower potential. because the proton is a negative charge and it accelerates as it travels, it must be moving from a region of lower potential to a region of higher potential. because the proton is a positive charge and it slows down as it travels, it must be moving from a region of higher potential to a region of lower potential. because the proton is a positive charge and it slows down as it travels, it must be moving from a region of lower potential to a region of higher potential. request answerpart bwhat was the potential difference that stopped the proton? express your answer with the appropriate units.î”v î” v = nothingnothingrequest answerpart cwhat was the initial kinetic energy of the proton, in electron volts? express your answer in electron volts. ki k i = nothing ev request answerprovide feedback

J. j. thomson’s experiment disproved the theory that an atom

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •