Worksheet 2 Key information: Dimensional analysis Problems 1. Some unknown substance is found to occupy a volume of 27.97 mL and weighs 152.170 g. What is the density of the substance? 2. A can of CREAMY peanut butter (crunchy is not good, don’t try to convince me otherwise) weighs 63.0 oz. What is this weight in units of kilograms? 3. A large cup of sweet tea (for all my non-soda companions) is found to contain 1024 mL of tea. What is the volume in gallons? 4. A chunk of metal weighs 152.146 g and has a volume of 24.94 mL. What is the density? 5. A can of Planters cashews weighs 10.3 oz. What is the weight in kilograms? Pounds? And for the heck of it, milligrams! 6. Continental washers are sold to laundromats (and are probably the washers in the dorms) one of their washers has a stated volume of 229 liters. What is the same volume in cubic ft? 7. Joe Carter (the UREC guy) says the pool holds 641,000 gallons. Say the pool is drained and cleaned than refilled. Three hoses are used to fill the pool that are all started at the same time. Each hose individually delivers water at a rate of 897 mL/sec. At this rate how many hours does it take to fill the pool with water?
