Question

How many significant figures are in the following numbers: A) 78.9 B) 3.788 times 10^9 C) 2.46 times 10^-6 D) 0.0053 Carry out the arithmetic operations using significant digit rules. A) the sum of the measured values 756, 37.2, 0.83, and 2 B) the product of 0.0032 times 356.3 C) the product of 5.620 and pi Consider the two vectors A = 3i - 2j and B = -i - 4j Calculate A) A+ B B) A-B C) |A + B| D) |A- B| After a ball rolls off the edge of a horizontal table at time t = 0, its velocity as a function of time is given by v = 1.2i - 9.8tj where v is in meters per second and t is in seconds. The ball's displacement away from the edge of the table, during the time interval of 0.380 s for which the ball is in flight is given by integral v dt from 0 to 380s Perform the integration to calculate the displacement of the ball from the edge of the table at 0.380 s

Answer 1

3eLoS occm aen decimal aie not 7〉 A> 75ç +37.2+ 0.33 + 2 = 79(,03 ako the decimal is. 3end, 서 75ς and 2 ns: 19 8) 0.0032x b 356. 3 Am: 1.1

al he numbe π has ok nila digit alo docu n md on mode aoulalan 4 ㄲ.modem crnputas can calable S, 620 X T iguns 2J ad ς. 3245

u.721 m/s At -O.380 s displacement o,380 A 2