B. How does potential energy change when
mass is increased?

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 athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

Which property is expressed in distance units? o a. period o b. wavelength o c. speed o d. frequency