Thursday

July 24, 2014

July 24, 2014

Posted by **Anonymous** on Monday, February 4, 2008 at 11:37pm.

a) 5.7 = 2 SD

b) 235.12 = 5 SD

c) 8.07 = 3 SD

d) 0.0032 = 2 SD

e) 0.0150 = 3 SD

f) 1.39x10^5 = 3 SD

g) 15.200 = 5SD

h) 1070 = 3 SD

2) Calculations - Please check the SDs

a) 15.3 + 25.03

= 40.33

= 40.3

b) 1200 + 63

= 1263

= 1300

c) 4.78 - 1.2

= 3.58

= 3.6

d) 243.1 + 15.2 + 3.75

= 262.05

= 262.1

e) 0.00170 + 0.02561

= 0.02731

= 0.0273

f) 4.0 - 3.99

= 0.01....

g) 2.7x82.7

= 223.29

= 220

h) 1074x3.21

= 3447.54

= 345

i) 0.022 x 9.7

= 0.2134

= 0.21

j) 0.0220 x 9.70

= 0.2134

= 0.213

k) 23.5/2.0

= 11.75

= 10

l) 0.1735/23

= 0.00754

= 0.0075

m) 18.2 x 27.9 x 1.3

= 660.114

= 660

n) 6.7x2.73/14.74

= 1.240

= 1.24

3) What units would result?

a) cm/s x s

= cm

b) m^2/s

=

c) m/s^2 x s

= m/s

d) m/s / s

=

e)g/cm^3

=

f) kg/m^2 / m

=

- Physics - correction - significant digits -
**bobpursley**, Tuesday, February 5, 2008 at 12:26am2 e,f n are wrong

3. the answers shown are correct, but several are blank.

- Physics - correction - significant digits -
**drwls**, Tuesday, February 5, 2008 at 12:56amThe reason (e) is incorrect is that, even though 0.00170 has three sig. digits, this is an addition problem, so only five places to the right of the decimal are required to match the significance of the 0.02561

- football -
**troy**, Wednesday, June 8, 2011 at 8:42amno because i would not quit

**Related Questions**

Physics - Talking about significant figures, my Physics textbook lists 5 rules ...

Physics - Calculate the answer for the following question and state the answer ...

Physics - bobpursely - State the number of significant figures. 1) 809 Answer : ...

Math - Expressed to the correct number of significant figures, the sum of two ...

Chemistry - please check my answers for the following questions. 1) when a ...

physics - A hole in an aluminum plate has a diameter of 1.465 cm at 22.80° C. (a...

chemistry - this is over significant digits. -Indicate how many significant ...

Significant Digits - (2.7 x 10^2) x (4.23 x 10^2) PLEASE YOU SIGNIFICANT DIGITS...

Chemistry - We are currently studying significant digits/figures. I was asked to...

Aerodynamics - Please if you could help with this... and explain very carefully ...