Consider the following instance variable and method that could appear in a class representing a grid of integers. private int 0 grid; public int countValint val) { blank 7 } The countVal method will access all values in the matrix and count the number of occurences of the parameter val. Val will exist at least once in the matrix. Which of following blocks of code would fill a blank *1 to correctly implement method countVal? 1. int cnt = 0; for(int r = 0;r

Scientists have changed the model of the atom as they have gathered new evidence. one of the atomic models is shown below. what experimental evidence led to the development of this atomic model from the one before it? a few of the positive particles aimed at a gold foil seemed to bounce back. the colors of light emitted from heated atoms had very specific energies. experiments with water vapor showed that elements combine in specific proportions. cathode rays were bent in the same way whenever a magnet was brought near them.