6. (I point) If you wrote the number 10 in the standard format as a I followed b

Question

6. (I point) If you wrote the number 10 in the standard format as a I followed by a bunch of zeros, how many zeros would you have to write? a) 81 b) 80 100 too many to count 7. (1 point) Which is true about speed? a) S peed is how fast something is going regardless of its direction. b) Speed is how fast something is going just in the +x-direction. Speed is the same as velocity. d) Speed can be either positive or negative. 8. (1 point) Which is true about the acceleration? It is always positive. b) It the rate that velocity is changing. c) It the rate that position is changing. It can never be zero. 9. (1 point) What is 09927613 using scientific notation and the correct number of significant figures? a) 7.8x 10 b) 7.761300x 103 c) 7.7613x 103 -7613x 103 10. (1 point) A car has a speed of 65 miles per hour. What is its speed in units of m/s? (1 mile 1609 m, 1 hour- 3600 s) a) 2.9 x 102 m/s b) 12 m/s c)29 m/s ) 150 m/s luoem 3G00S

Explanation / Answer

6) 10^n , the nmber of zeros will be equal to n

so option b) 80 is the correct answer

7) speed is how fast someone is going regardless of its direction

8) acceleration is the rate of change of velocity

9) d) 7.7613*10^-3

10) 65 miles/ hr = 65*1609 / 3600

= 29 m/s

so option c) is correct

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