For a bronze alloy, the stress at which plastic deformation begins is 267 mpa and the modulus of elasticity is 115 gpa.
(a) what is the maximum load (in n) that may be applied to a specimen having a cross-sectional area of 341 mm2 without plastic deformation? in (n)
(b) if the original specimen length is 169 mm, what is the maximum length (in mm) to which it may be stretched without causing plastic deformation? in mm

A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?

Ajet plane has a sound level of 120 db at a distance of 60 m. what is the q23. sound level at a distance of 6.0 km? (60)2 (6000)? om solution 80db db, hint: 16x assume ultrasound waves travel through the body of an animal at 1540 q24. m/s. if a 30,000 hz signal were reflected off a portion of a heart which was moving toward the source at 3 m/s, what frequency signal would return to the stationary source? solution 30.117hz

Energy flows from the producer level to the level. is called