See periodic table identify the true statement. choose one:
a. southwestern california and the baja peninsula are moving toward the southwest along the section of the pacific plate-north american plate boundary called the san andreas fault.
b. plates move in response to only two mechanisms: the ridge-push force and the slab-pull force.
c. the north american plate is currently moving toward the northeast at about 5 meters per year.
d. the direction of movement of the pacific plate changed about 47 million years ago, which created a bend in the hawaiian-emperor hot-spot track.

Grace period is a period of time before the credit card company starts charging late fees.truefalse

Auniversity spent $1.8 million to install solar panels atop a parking garage. these panels will have a capacity of 400 kilowatts (kw) and have a life expectancy of 20 years. suppose that the discount rate is 20%, that electricity can be purchased at $0.10 per kilowatt-hour (kwh), and that the marginal cost of electricity production using the solar panels is zero. hint: it may be easier to think of the present value of operating the solar panels for 1 hour per year first. approximately how many hours per year will the solar panels need to operate to enable this project to break even? a. a.3,696.48 b.14,785.92 c.9,241.20 if the solar panels can operate only for 8,317 hours a year at maximum, the project (would/would not)break even?

Six years ago, an 80-kw diesel electric set cost $160,000. the cost index for this class of equipment six years ago was 187 and is now 194. the cost-capacity factor is 0.6. the plant engineering staff is considering a 120-kw unit of the same general design to power a small isolated plant. assume we want to add a precompressor, which (when isolated and estimated separately) currently costs $13291. determine the total cost of the 120-kw unit. (hint: skip $ and comma symbols)