The mass in a mass-spring harmonic oscillator is pulled from equilibrium to an initial displacement of 0.23 m and is then released from rest. after t=737 s the amplitude is observed to be 0.067 m. find the value of the damping rate =/2m, where the motion of the block is described by x=−+phi).

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?

How many neutrons does plutonium -196 with an atomic number of 78.

Students in an introductory physics lab are performing an experiment with a parallel-plate capacitor made of two circular aluminum plates, each 11 cm in diameter, separated by 1.0 cm. how much charge can be added to each of the plates before a spark jumps between the two plates? for such flat electrodes, assume that value of 3×106n/c of the field causes a spark.