1. Convert a speed limit of 70 miles per hour to the SI units of meter/second. 2. Determine the surface area of Earth (a

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1 Convert A Speed Limit Of 70 Miles Per Hour To The Si Units Of Meter Second 2 Determine The Surface Area Of Earth A 1 (58.82 KiB) Viewed 29 times

1. Convert a speed limit of 70 miles per hour to the SI units of meter/second. 2. Determine the surface area of Earth (assuming it is a sphere) from its radius, which is about 6400 Km. What is the area of Earth's oceans if they cover 2/3 of earth's surface? 3. Write the following numbers in scientific notation: 299792458 m/s; 86400 s; 9192631770 oscillations; 0.000015 cm. 4. How many seconds are in a day? In a month? In a year? 5. A car is traveling at a speed of 38 m/s on an interstate highway where the speed limit is 75 mi/h. Is the driver exceeding the speed limit? Justify your answer. 6. Sphere 1 has surface area A1 and volume V1, and sphere 2 has surface area A2 and volume V2. If the radius of sphere 2 is double the radius of sphere 1, what is the ratio of (a) the areas, A2/A1 and (b) the volumes, V2/V1?