A diagonal bar CD was welded to the AB beam supported at its ends. Two perpendicular inertias, each with the value P, are applied to the bar ends, providing a pair of forces. Moreover, a vertical force Q acts on the beam. Determine the reaction of supports A and B. Do not let go of the dead weight of the beam and the bar. Given: P = 200N, Q = 100N, l = 2m, r = 1m, a = 0.5m
Correct RBY = - 75N, RA = 175N

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx hurrim timed

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?