Question

college physics with integrared aproach to forces

meters with the appropriate number of significant fig. ures and in scientific notation: radius r= 1: through the a blood flow th 38. A molecule i many meters (millisecond molecules? 3.08 × 10-1 km + 2.00 × 103 cm 25. Given these measurements, identify the number of signifi- cant figures and rewrite in standard scientific notation. (a) 0,00574 kg (b) 2 m (c) 0.450 x 102 m (d) 45.0 kg (e) 10.09 ×104 s (f) 0.09500 x 105 mL 39. Express thi ate number (13 × 10-3 40. (a) How m (1 in. 2. in 1 squa (a) and (b how many 1.5 Units 26. Rank the following lengths from smallest to greatest (a) 1 μm; (d) 0.01 cm;/ Rank these speed measurements from smallest to greatest: (a) 55 mi/h: (b) 82 km/h; (c) 33 m/s; (d) 3.0 cm/ms; (c) 1.0 mi/min. (b) 1000nm, (e) 0.000000000 1 km. (c) 100000 pm; 27. 41. A snail snail's sp y of body fat is 0.9 g/cm. Find the 42, Ana density in kg/m. cross-se 29 A cell membrane is 7.0 nm thick. How thick is it in in squar inches? 1.6 Dimen 43. An equ 30. The label on a small soda bottle lists the volume of the drink as 355 mL. (a) How many fluid ounces are in the bottle? A competitor's drink is labeled 16.0 fl oz. (b) How many milliliters are in that drink? in joul combir 31. The length of the river span of the Brooklyn Bridge is joules 1595.5 ft. The total length of the bridge is 6016 ft. Find the length in meters of (a) the river span and (b) the total bridge length? 44. One where -2 m's in ne dime 32. A beaker contains 255 mL of water. (1 mL I milliliter; 1 L = 1000 cm.) What is the volume of the water in (a) cubic centimeters? (b) cubic meters? 1 L 1000 cm') What is the volume of the water in

Answer 1

28)

${\color{Blue} \rho =900\, Kg/m^{3}}$

29)

${\color{Blue} thick =28\times 10^{-8}\, in}$