Q: The acceleration of gravity means that for each second that passes, falling objects move 9.8m? A:True
2 answers:
Answer:
False
Explanation:
If the object covers 9.8 m every second then it has a constant velocity of 9.8 m/s
The acceleration implies that there is a change in velocity. With a constant acceleration the velocity will change linearly.
The distance traveled each second will not be a constant, it will be a quadratic function as mentioned above.
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Answer:
30.5 x 10³ min.
Explanation:
Atomic weight of aluminium = 27
For the reaction
Al⁺³ + 3e = Al
3 mole of electron is required by 1 mole of aluminium
3 x 96500 C of charge is required for 27 gram of aluminium
60.2 g aluminium will require
645.47 x 10³ C
So charge required = 645.47 x 10³ C
Now Charge = Current x time
Current ( given ) = 0.352A
Time = charge / current = 645.47 x 10³ / .352
=1833 x 10³ s
30.5 x 10³ minutes