A wooden bar dimensions are 2.5 in by 5.5 in by 10 ft. its modulus of elasticity is 300,000 psi. What will be the maximum deflection (δmax) of the bar if it is placed on joist orientation on two supports at its two ends and a load of 300lb is placed on its center. (I NEED THE ANSWERS FAST!)

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.