Chapter 1, Problem 1.9E

1-65 While you drive your car, your battery is being charged. How would you describe this process in terms of kinetic and potential energy?

PART 2 Density of Gravel The mass of the empty weighing boat was measured. Then the weighing boat was filled with gravel, and the mass of the weighing boat and the gravel was measured. Mass of weighing boat = 0.98 g Mass of weighing boat and gravel = 58.98 g We are interested in the mass of the gravel. (a) Gravel is matter. Why? (b) What is the name of this method of measurement of mass of a substance? (c) What is the other method of measurement of mass of a substance? (d) What type of balance are we using in this experiment? (e) Calculate the mass of the sample of gravel.

3.) An iron block weighs 5N and has a volume of 200 cm3. What is the density of the block in kg/m3?

1. (a) Normally the human body can endure a temperature of 105°F for only short periods of time without permanent damage to the brain and other vital organs. What is this temperature in degrees Celsius? (b) Ethylene glycol is a liquid organic compound that is used as an antifreeze in car radiators. It freezes at 211.5°C. Calculate its freezing temperature in degrees Fahrenheit. (c) The temperature on the surface of the sun is about 6300°C. What is this temperature in degrees Fahrenheit?

The volume of water used for crop irrigation is measured in acre-feet, where 1 acre-foot is the amount of water needed to cover 1 acre of land to a depth of 1 ft.(a) If there are 640 acres per square mile, how many cubic feet of water are in 1 acre-foot?(b) How many acre-feet are in Lake Erie (total volume = 116 mi3)?

(a) Starting with the definition 1.00 in.= 2.54 cm, find the number of kilometers in 1.00mile. (b) In medicine, volumes are often expressed in millimeters (ml or mL). Showthat a milliliter is the same as a cubic centimeter. (c) How many cubic centimetersof water are there in a 1.00 L bottle of drinking water?

Which of the following include exact numbers?(a) The speed of light in a vacuum is a physical constant; to six significant figures, it is 2.99792×108 m/s.(b) The density of mercury at 25°C is 13.53 g/mL.(c) There are 3600 s in 1 h.(d) In 2010, the United States had 50 states.

1.111 In the hospital, your doctor orders 100. mg of medication per hour. The label on the IV bag reads 5.0 g/1000 mL The IV administration set delivers 15. gtts/mL, where the unit gtts denotes drops of liquid as explained in Problem 1.51. (a) How many mL should infuse each hour? (b) The current drip rate is set to 10. gtts/min. Is this correct? If not, what is the correct drip rate?

If mercury (density = 13.6 g/cm3) at a height of 895 mm Hg in a mercury barometer is replaced with water (density = 1.00 g/cm3), under the same conditions the height of water will be. (The unit of your answer should be in meter with five significant figures)