Determine whether the given set is a vector space. If not, give at least one axiom that is not satisfied. Unless stated to the contrary, assume that vector addition and scalar multiplication are the ordinary operations defined on that set. The set of real numbers, addition defined by x+y=x−y\mathbf{x}+\mathbf{y}=x-yx+y=x−y
Explain selective seeing and why it's important for drivers.
Which of the following elements is formed in stars? A. curium, B. einsteinium, C. gold, D. mendelevium.
When an atom \rule{1cm}{0.2pt} energy from outside, the atom goes from a lower energy state to a higher energy state.
