There has been a car accident involving four vehicles on a remote highway. the nearest emergency department is 15 minutes away. which victim should be transported by helicopter rather than an ambulance to the nearest hospital?

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.

When an object is heated it contracts. a. true b. false

Which additional product balances the reaction h2so4 + 2naoh → na2so4 + 2h2o 2oh h2o2 h3o