A wave disturbance is described by the function J=(-36T m^2 s^2 k) / [ (30 s y – 40 s z -4 m t)^2 +500 m^2 s^2]
Read More
A water wave demonstration tank is 40 m long. At one end, at
A water wave demonstration tank is 40 m long. At one end, at the origin, Mary is generating waves described by the function y1=2.0 cm cos[/(9m) (4x-(8m/s)t]. At the other end Paul is generating waves described by y2=-3.0cm sin [2/(3s)((1s/m)x+2t)]. At x=10m, Peter is recording
Read More
A nonconducting sphere of radius r2 contains a concentric sp
A nonconducting sphere of radius r2 contains a concentric spherical cavity of radius r1. The material between r1 and r2 carries a uniform charge density ρE(C/m3). Determine the electric potential V, relative to V=0 at r=∞, as a function of the distance rfrom the center
Read More
Two horns using the same design are supposed to be playing (
Two horns using the same design are supposed to be playing (simultaneously) a sustained resonant note of 320.o Hz, but they are not quite identical which makes the shorter instrument a bit off. If the beat annoys listeners with a 5 second cycle, what is
Read More
A mass m = 1kg is attached to a spring witha spring constant
A mass m = 1kg is attached to a spring witha spring constant k= 4N/m and undergoes simple harmonic motion. The maximum speed of the mass is vmax= 2m/s.
Read More
Parallel-plate capacitors are widely used in electronics, su
Parallel-plate capacitors are widely used in electronics, such as for preventing direct current leakage. An electric field is generated between a pair of plates that has a surface charge density of 4.00 10 -6 C/m 2 . The plates are separated by 0.17 µm.
Read More
A charge, Q2 = -15.00×10-6 C, is 14.00 cm to the right of ch
A charge, Q2 = -15.00×10-6 C, is 14.00 cm to the right of charge Q1 = 14.00×10-6 C. Where can a third charge be placed, along the line connecting Q1 and Q2, such that it experiences no net force (other than ±∞)? Give distances relative
Read More
A rocket, away from all gravitational forces, accelerates up
A rocket, away from all gravitational forces, accelerates upward at an acceleration of 12.8m/s^2. On its main deck is a crate with a mass of 81.6kg. a) How many forces act on the crate? b) Determine the Normal force on the crate, & c) What
Read More
A solid cylinder of mass M and radius R starts from rest and
A solid cylinder of mass M and radius R starts from rest and rolls down a hill without slipping. The cylinders center of mass drops a total distance h. The cylinder is subject to the downward gravitational force Fg of the Earth.
Read More

