Which of the following is true about mechanical waves? Question 1 options:

Matter moves

Does not move energy

Moves energy

Does not require a medium

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.

Which object is most likely represented by a dot?

How is zig zagging a form of acceleration?