There would be more - charges on the peanuts because they gain electrons which are represented with the - sign. There would also be more + on the cat to show that the cat’s fur is positively charged. The peanuts would be attracted to the cat because opposite charges attract.
As for explaining the first model, there should be the same amount of + and - charges on the peanuts as well as the cat to show that it is balanced and the peanuts are not attracted or repelled by the cat.
Dissolves limestone and other rocks.
No they say "Watch out it's the fuzz"
The first collision because a greater amount of momentum must be taken and used in order to push the cart back, giving it a greater mass and impulse
