(a) 1.25 light-years to miles (a light-year is an astronomical measure of the distance traveled by light in a year, or 365 days; the speed of light is 3.00 × 10% m/s) x 10 mi Enter your answer in scientific notation. (b) 27.3 yd to centimeters × 10 cm Enter your answer in scientific notation. (c) 2.7 × 1010 cm/s to ft/s × 10 ft/s Enter your answer in scientific notation.

2 8 Perform the following calculations: (6.02 × 10²3) × (7.1 × 103) = 4.2742 ×1027 (8.46 × 10-4) × (2.23 x 103) = 1.88 65 8×100 3.6 × 107/2.2 × 104 = 1.63 x 10" 9 Perform the following conversions: 27.03 cm X 3.3 × 10⁰ g X 83 mph X 3.33 × 10-³ mL X 75 μm x 4°C X 12 miles x 2.9 g X 11.7 mg x 3.62 × 10-³ L X 36 gallons X 100 yards X 77°F X 15 nm X -16°C X 29 µg X 30 = = = || = || = || = = Exploring Biology in the Laboratory 04 6.4 × 106/4.2 × 10-³ = 1,52 7.2 × 108 + 3.3 × 107 = 7.53×108 9.4 × 106 - 4.6 × 10³ = 8.94×106 nm kg km/h gallons mm °F mm pounds kg mL Ligns 3 °C m °F ounces 29x119 1590 00000 on sii byg مواد ola 3 omen 3 bab 8 a obim A M

A piece has mass of 57.41 g and volume of 3.62 cm3. The density of the piece in kilogram per cubic meter is: a. 1.585 x 103 kg/m3 Ob.15.85 kg/m3 OC 1.585 x 104 kg/m3 Od.1.585 x 102 kg/m3

U.S. football field is 120 yards long (including the end zones). How long is the field in the following units of measurement? (a) meters (b) millimeters mm (c) feet ft (d) inches in

You are moving to the USA for your studies and the apartment you want to rent states a floor size of 1187 square feet.  How many square meters is that?  (1m = 3.28 ft)

(a) What Is the area and uncertainty in area of one side of a rectangular plastic brick that has a length of (21.4 + 0.4) cm and a width of (9.8 0.1) cm? (Give your answers in cm².) 209.72 X 6.06 x) cm² (b) What If? If the thickness of the brick is (1.2 ± 0.1) cm, what is the volume of the brick and the uncertainty in this volume? (Give your answers in cm³.) 1.73 X 0.432 x) cm³

(a) A car speedometer has a 6% uncertainty. What is the range of possible speeds (in km/h) when it reads 100 km/h? (There are two answers. Enter the lowest value first and the highest value second. For each answer, enter a number.) lowest          km/hhighest         km/h (b) Convert this to miles per hour. (There are two answers. Enter the lowest value first and the highest value second. For each answer, enter a number.) lowest            mi/hhighest           mi/h

1.4 Units in equations Given that the following equation calculates position in meters (x) as a function of time in seconds (t): use dimensional analysis to determine the units of the coefficient "u". Xp = Xi + v¡t +,a,t? + 1 2.3/it3+ 2t4/3 2-3 4 2 3.4.54it + 3.7321 · w t3/2 Units of "u" are

A unit of time year (yr) is defined as 365.25 days. Y How many seconds are there in 1.10 yr ? Express your answer using three significant figures. 1.10 yr = Submit Part B 17| ΑΣΦ 1.10 yr F Request Answer How many nanoseconds are there in 1.10 yr ? Express your answer using three significant figures. VO ΑΣΦ w ? ns S

I have tried 16.7x10^3, 16.7x10^4, and 1.365x10^8 and those are all wrong for the first part. I know that the second part is 14.3 hr. I need to know the km/s. Thank you!!