Light has a wavelength of 340.0 nm and a frequency of 5.403 x 1014 Hz when traveling through a certain substance. What substance from Table 26.1 could this be? Show your calculation

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.

Two balls, each with a mass of 0.5 kg, collide on a pool table. is the law of conservation of momentum satisfied in the collision? explain why or why not

Explain what will happen if decomposers were apsent from a forest ecoysystem.