Darylynn

Karen hang a spring vertically and attaches 30g Mass to the springs other end. If the spring stretches 5 cm. What is the spring constant?

a stone is thrown into a pond creating ripples that are concentric circles. the rate of change of the radius of the circle is 3 ft/min. if the radius is 0 at the time=0, how fast is the area increasing after 4 minutes