GO Friction: F = UN
4
5
Work:
W = FD
or
F = WID
Earth's Gravity: 0.01 Ng =
Power:
P = WIT
or
D = WIF
10 N/kg
or
P = (FD)/T
or
W = PT
or
T = WIP
26. What is the Frictional Force of an object with a coefficient of friction of 0.677, and a Normal force of
205N?|

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons