2. A horizontal force of 805 N is needed to drag a crate across a horizontal floor at a constant speed. How much work do you do on the crate when moving it 22 m across the floor?
WF
3. An airplane passenger carries a 223 N suitcase up the stairs, a displacement of 5.3 m
horizontally and 5.6 m vertically.
a) How much work does the passenger do?
b) The same passenger carries the same suitcase back down the same stairs. How
much work does the passenger do now?
the floor

77

step-by-step explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

dalila is incorrect. the whisker on the left is very long, going all the way out to 5. the whisker goes from 5 to 30, so it has a spread of 25. the rest of the box plot values are closer together, so 5 is an outlier