1. a strip of high strength steel has a length of 30 cm and a cross section of 1 mm x 20 mm. the modulus of elasticity is 200 gpa, and poisson’s ratio is 0.27. it is subjected to an axial load of 15000 n, and it is instrumented with two axial strain gages, with r=120 ohms and a gage factor of 2.10. the two gages are connected into opposite legs of a wheatstone bridge (r1 and r3). the two fixed resistors are also 120 ohms, and the supply voltage is 2.5 v. the bridge is adjusted to zero voltage output before the load is applied. find the output of the bridge with the load applied. (5 marks)

does anyone know or what?

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

bacteria that live on the ocean floor are sustained by phytoplankton. phytoplankton, microscopic marine photosynthetic organisms, have a vastly significant role to play not only in the marine food web of which they’re part of, but also on a more global scale. despite their infinitely small size in comparison to other marine organisms, these tiny creatures occupy an immensely important ecological niche: they are the foundation of the marine food web, and as primary producers, play key roles in supporting all other organisms in the marine environment, as well as in the regulation of the earth’s climate through the sequestration of carbon, oxygen production, and other related processes. phytoplankton account for roughly half of all global primary productivity; therefore, their significance extends far beyond the marine environment alone. there is an intriguing sense of irony in the realization that these tiny living beings that often live out their existence unnoticed and undetected by the rest of the world, have such a far-reaching impact on the lives of virtually all other living organisms on the planet, particularly on those in the marine environment. the world that we have become accustomed to has been and is continuously shaped by the workings of these miniscule yet vital “plants of the sea”.

hope this !