A plane progressive wave is represented by the equation y =2sin (2000πt- 0.5x) the symbols have their usual meanings. What is the frequency of the wave and the wavelength

The desk has a weight of 75 lb and a center of gravity at g. determine the initial acceleration of a desk when the man applies enough force f to overcome the static friction at a and b. also, find the vertical reactions on each of the two legs at a and at b. the coefficients of static and kinetic friction at a and b are ms = 0.5 and mk = 0.2, respectively

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?