CollegePhysics2e-SSM-Ch01

One mole of Gold (Au) atom has a mass of 197 g. We know that the density of gold is 19.30 g/cm3 in room temperature. Using those numbers, answer the following questions: a) What is the mass of a single gold atom in kg? b) Assume that gold atoms sit in a perfect cubic crystal structure. Estimate the distance between two gold atoms in meters.   c) If we have a gold cube of 6 cm on each side, how many atoms can we fit along the edge of each side of the cube?  d) What would be the mass, in kilograms, of the gold cube we discussed in part (c) (measuring 6 cm on each side)?

Imagine that in the measurement of 4.6 cm long metallic cylinder, your measurements in centimeters are (3.0, 3.5, 4.0, 4.5, 5.0, 5.5,6.0). What is the standard error of your length measurement. O 1.08 O 0.022 O 0.22 O 0.41 O2.22

You measure the diameter of a drop of water to be 3 mm. Make an order-of-magnitude estimate of how many such drops are contained in all the water in your body. Diameter = 3mm

What is the speed of a car going v=1.000 mph in SI units? Notice that you will need to change miles to meters and from hours to seconds. you can do each conversion separately. Use the facts that 1 mile=1609 m and 1 hour= 3600s

What is the value of n+r/(2.000) 2, written with the correct number of significant figures? O 3.92699 O 3.9269 O 3.9270 O 3.927 O 3.93

A king size bed is generally measured to be 12 feet wide and 10 feet long in size. How long is it in meters?   Shoe boxes are typically 33 cm long, 19 cm wide, and 10.0 6 cm high for women. Calculate the volume of a typical shoe box in m^3 (cubic meter)

Question No. 1 A physical quantity is measured and its value is found to be equal to nu, where n is the numerical value and u is the unit. Which of the following relations is true? O nxu? .2 O nxu O nx vũ

Monarch butterflies belong to one of the most beautiful species of animals. To protect themselves from the cold in Canada and the United States, they fly to Mexico and the countries of Central America in the fall. If they travel an approximate distance of 3,960 km during 60 days, a) what is the speed of the butterflies in m / s b) in km / hr

A light-year (ly) is the distance light travels in one year (at speed of 2.998 ×× 108 m/sm/s ). An astronomical unit (AU) is the average distance from the Sun to Earth, 1.50 ×× 108 kmkm.1 yearyear = 3.156 ×× 107 ss. a. How many meters are there in 6.50 lyly ? Express your answer using three significant figures.       b. How many AUAU are there in 6.50 lyly light-year?   Express your answer using three significant figures.

Table Completion Complete the table below. Express your answer in two decimal places and follow the rules in rounding off numbers. Be sure to write your answer in correct SI unit P1 P2 V1 V2 62 Pa 95 L 1200 mL 1320 torr 1.20 x103 dm3 4560 L 4420 atm 20 Pa 88 L 833 mmHg 10 L 12 L 72 atm 0.20 torr 41 L 14

Express the answer in standard scientific notation with the appropriate number of significant figures. a. The mass of a blue whale, 180000 kg. ____ x10 ^___kg b.  The diameter of a helium nucleus, 0.000 000 000 000 003 8 m. ____ x10 ^___m