A1730-n irregular beam is hanging horizontally by its ends from the ceiling by two vertical wires (a and b), each 1.30 m long and weighing 0.320 n . the center of gravity of this beam is one-third of the way along the beam from the end where wire a is attached. part a if you pluck both strings at the same time at the beam, what is the time delay between the arrival of the two pulses at the ceiling? (neglect the effect of the weight of the wires on the tension in the wires.)

The intensity, or loudness, of a sound can be measured in decibels (db), according to the equation , where i is the intensity of a given sound and is the threshold of hearing intensity. what is the intensity, in decibels, [i(db)], when ? use a calculator. round to the nearest whole number. 8 9 19 80

Calculate the heat capacity per object when the total energy is 4 quanta. (think of this in terms of increasing from 3.5 quanta of energy in the system to 4.5 quanta of energy in the system, if that were possible.) c4 = __ j/k/object

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?