PLZ HURRY, TIMED thanks

The table represents the speed of a car in a northern direction over several seconds. A 2-column table with 5 rows. The first column labeled Column 1 has entries 0, 2, 4, 6, 8, 10. The second column labeled Column 2 has entries 5, 10, 15, 20, 25, 30. Column 1 would be on the x-axis, and Column 2 would be on the y-axis. Which best lists the titles of each column?
a- Column 1 should be titled “Time,” and Column 2 should be titled “Velocity.” b- Column 1 should be titled “Velocity,” and Column 2 should be titled “Time.” c- Column 1 should be titled “Time,” and Column 2 should be titled “Acceleration.”
d- Column 1 should be titled “Acceleration,” and Column 2 should be titled “Time.”

Ok i am attempting to my niece attach a galvanized wire (like a tether for a dog) at the corner of two fences, making a tightwire if you will and we drilled a hole in a softball and she hits it. the ? and problem is that we can not get the wire taunt enough where it doesnt sag after hitting the ball once, and the wire sags and wobbbles. its a 15 ft rubber covered galvanized wire and one can adjust the length of the placing of the wire by having it make the corner of 2 fences become a it can be adjusted, however, with all our human strength and pliers we could not make it taunt as possible. is there anything other that attaching it to a car to do this. sorry abt the length but it would mean the world to my niece if i could solve this came up with the entire idea herself, and she is 14 and paid for the wire and did as much work as i did drilling a hole through a softball wide enough for attaching piece at each end of the wire that clips on to the fence. . any ideas welcome if serious. but awesome if it is a fact. much obliged. bucky bukowski buckman

Keneila is attempting to ski down a 20 m high friction free hill for the first time. she has a speed 10 m/s at the top. what is her kinetic energy when she is a the bottom, 20 m ? (a)2500 j (b)9800 j (c)12300 j (d)3100j (e)15000j

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.