Q1. A rectangular container measuring 23 cm 52 cm 61 cm is filled with water. What is the mass of this volume of water in kilograms and grams?
Q2. A lighthouse that rises h1 = 43.6 ft above the surface of the water sits on a rocky cliff that extends $d$ = 20.0 ft from its base, as shown in the figure below. A sailor on the deck of a ship sights the top of lighthouse at an angle of $theta$ = 29.6$circ$ above the horizontal. If the sailor's eye level is h2 = 11.7 ft above the water, how far is the ship from the rocks?