When one person shouts at a football game, the sound intensity level at the center of the field is 58.4 dB. When all the people shout together, the intensity level increases to 102 dB. Assuming that each person generates the same sound intensity at the center of the field, how many people are at the game?

How much work would a child do while puling a 12-kg wagon a distance of 3m with a 22 n force directed 30 degrees with respect to the horizontal? (a) 82j (b) 52j (c) 109j (d) 95j

Ahorizontal wire is tied to supports at each end and vibrates in its second-overtone standing wave. the tension in the wire is 5.00 n, and the node-to-node distance in the standing wave is 6.28 cm. (a) what is the length of the wire? (b) a point at an anti- node of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 ms. what is the wire's mass?

What happens to an isotope during radioactive decay?