4. An alarm, behaving as a point source of sound, emits a piercing 13.5 kHz tone at a power of 109 Watts. It isdesigned to produce ear-splitting pain that will cause an escaping burglar to immediately collapse to the ground.If a particular burglar's threshold of pain occurs at a sound intensity level of 121 dB, how far away must theburglar be for his hearing to be right at the threshold of pain? 5. A uniform beam of length 12.0 m has a mass of 70.0 kg. It is held atrest at an angle of 0 = 50° to a vertical wall by a horizontal cable at its topand a hinge at its bottom. Determine the tension that the cable exerts onthe beam, and the horizontal (H) and vertical (V) forces exerted by the hingeon the beam.

Answered: Image /qna-images/answer/95951a5c-ae8d-4622-b923-57078fe3588b.jpg

5. A uniform beam of length 12.0 m has a mass of 70.0 kg. It is held at rest at an angle of 0 = 50° to a vertical wall by a horizontal cable at its top and a hinge at its bottom. Determine the tension that the cable exerts on the beam, and the horizontal (H) and vertical (V) forces exerted by the hinge on the beam.

5. A uniform beam of length 12.0 m has a mass of 70.0 kg. It is held at rest at an angle of 0 = 50° to a vertical wall by a horizontal cable at its top and a hinge at its bottom. Determine the tension that the cable exerts on the beam, and the horizontal (H) and vertical (V) forces exerted by the hinge on the beam.