A tourist who avails of airline ticket doesn’t need to be physically present inside the airplane to avail of the product. True or false

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.

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false

Select all the correct answers. which three statements about electromagnetic radiation are true?