Answer:
Explanation:
I can give you four for certain.
Copper
Gold
Silver
Aluminum
KE=1/2mv^2
So the 3kg ball rolling at velocity of 3m/s has a KE=1/2(3)(3^2)=27/2=13.5J
The 2kg ball only has a KE=1/2(2)(3^2)=9J
So we can see the 3kg ball has more KE than the 2kg ball because they are moving at the same velocity so the bigger mass has more KE
Name the element and explain why it is unusual:
a)A liquid metal
b)A non-metal that conducts electricity