A steel wire of length 3.0cm is stretched through 2mm. If the cross-sectional area of the wire is 5.0mm², and the Young modulus of steel is 2.0x10''Nm?
Calculate the strain in the wire, the stress in the wire, and the energy density.

Explanation:

rigidibiyu. jtibiti vekov oeo i irki jri kri oro lro

graphing motion: mastery test

209be

what is the instantaneous acceleration of

the particle at point b?

0 meters/second?

10 meters/second?

12 meters/second?

velocity imetersisecond

15 meters/second?

20

time (seconds)

answer: 0 meters/second^2

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west