Answer Happy

= Question 3 (15 pts) For a bubble, the surface tension force in the downward direction is Fa = 47Tr Where T is the surface tension measured in force per unit length and r is the radius of the bubble. For water, the surface tension at 25°C is 72 dyne/cm. Write a script 'surftens' that will prompt the user for the radius of the water bubble in centimeters, calculate Fa, and print it in a sentence (ignoring units for simplicity). Assume that the temperature of water is 25°C, so use 72 for T. When run it should print this sentence: >> surftens Enter a radius of the water bubble (cm): 2 Surface tension force Fd is 1809.557 Also, if you type help as shown below, you should get the output shown. >> help surftens Calculates and prints surface tension force for a water bubble