9.16 Implement a GUI application that allows users to compute their body mass index (BMI), which we defined in Practice Problem 5.1. Your GUI should look as shown below. After entering the weight and height and then clicking the button, a new window should pop up with the computed BMI. Make sure your GUI is user friendly by deleting the entered weight and height so that the user can enter new inputs without having to erase the old ones.

tk Enter your height: Enter your weight: Compute BMI