The answer would be A a copper penny the reason this would be the answer is because Copper<span> is still the most popular material used for </span>wires<span> because it is a very good conductor of electrical current and it is fairly inexpensive when compared to gold and </span>silver<span>. </span>Aluminum<span> and most other </span>metals<span> do not conduct electricity quite as good as </span>copper<span>.</span>
Answer:
Part a)
Part b)
Part c)
Explanation:
Part a)
Object is thrown sideways
since the railroad car is moving on the track so there is no change in the momentum in the direction of motion of the car
so final speed of the car will not change
Part b)
By momentum conservation we can write
Part c)
Again by momentum conservation we have
Answer:
??? i don't no what you just said
Explanation: