The major satellites that provide early warning information about solar flares and CMEs have been on the job for several years. How long will they last, and why does it matter? Read the article, “Are small satellites the solution for space weather modeling?”
Bring up an Internet search engine.
Type, “Are small satellites the solution for space weather modeling?” into the search box.
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Then analyze the timeline for consideration of the Space Weather Research and Forecasting Act (a. k.a., Space Weather Coordination Act). The Act is an attempt to coordinate federal agencies’ study and forecasting of space weather, as well as to determine the vulnerability of infrastructure to geomagnetic storms.
A Congressional Budget Office (CBO) estimate put the bill’s cost at $182 million over five years when the bill was first introduced in 2016. The policy of the U. S. government includes strong support for research into and preparedness for the effects of space weather. Does the government’s policy match its actions? Does it match the seriousness of the situation? What are the consequences?

Acatapult is tested by roman legionnaires. they tabulate the results in a papyrus and 2000 years later the archaeological team reads (distances translated into modern units): range = 0.4 km; angle of launch = π/5 rad; landing height = launch height. what is the initial velocity of launch of the boulders if air resistance is negligible?

An internally reversible refrigerator has a modified coefficient of performance accounting for realistic heat transfer processes of where qin is the refrigerator cooling rate, qout is the heat rejection rate, and is the power input. show that copm can be expressed in terms of the reservoir temperatures tc and th, the cold and hot thermal resistances rt,c and rt,h, and qin, as where rtot rt,c rt,h. also, show that the power input may be expressed as 1.39 a household refrigerator operates with cold- and hot-temperature reservoirs of tc 5 c and th 25 c, respectively. when new, the cold and hot side resistances are rc,n 0.05 k/w and rh,n 0.04 k/w, respectively. over time, dust accumulates on the refrigerator’s condenser coil, which is located behind the refrigerator, increasing the hot side resistance to rh,d 0.1 k/w. it is desired to have a refrigerator cooling rate of qin 750 w. using the results of problem 1.38, determine the modified coefficient of performance and the required power input w under (a) clean and (b) dusty coil conditions. internally reversible refrigerator qout qin w high-temperature reservoir low-temperature reservoir th th,i tc,i tc high-temperature side resistance low-temperature side resistance w qin th tc qinrtot tc qinrtot copm tc qinrtot th tc

Why can blue light and yellow light combine to produce white light? question 17 options: they are both primary colors of light. they absorb each other's wavelengths. because blue, yellow, and white are primary colors. they are complementary colors of light.