4. A cone 0.3 m high with an end radius of 0.15 m seals 3 hole as shown. The inside of the cone has a cylinder hollowed out, which is lled with water, as shown. The tip of the cone has a 0.02 m diameter hole drilled through it. The hole is about 0.07 m long. If the cone is just stable as shown, what is the weight of the cone? Note, the volume of a cone is given by V = 13.75er_ V 0.15m 0.02 m dia. hole 0.07 m long 0.15m