In predicting the motion of tsunamis generated in the sea, and interacting with shoreline objects. a ripple tank is used to generate straight waves in region a that travel toward region b, which is separated from region a by a straight boundary. the frequency of the generator is 2.5 hz, and the waves travel in region a with a speed of 15 cm/s. if the wave fronts in region a strike the boundary at 20, and the wave fronts in region b leave the boundary at 50, (a) use snell's law to find the relative index of refraction between the two regions (2) (b) find the wavelength in each region

Awalk up the phase change graph worksheet

Which lists the fundamental forces in order, from strongest to weakest? strong nuclear, weak nuclear, electromagnetic, gravitational strong nuclear, electromagnetic, weak nuclear, gravitational gravitational, weak nuclear, electromagnetic, strong nuclear electromagnetic, gravitational, strong nuclear, weak nuclear

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.