If protactinium - 234 underwent alpha decay, what isotope would you end up with? a
actinium - 230
b
neptunium - 237
c
thorium - 232
d
uranium - 238

The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.

In a system, when potential energy decreases, then entropy also decreases. true false

Asher cycles 12 miles in 16 hours. what is his speed?