Although wave power does not produce pollution, some people may not want to invest in it because it is 100 percent renewable inexpensive to operate low tech prone to storm damage and limited to particular areas of the ocean

Adolphin emits ultrasound at 100khz and uses the timing of reflections to determine the position of objects in the water. part a what is the wavelength of this ultrasound? assume that temperature of water is 20 degrees c. answer in cm

Which of the following forces require physical contact? tension air resistance friction magnetic force applied force

Which of the following is a true statement about the acceleration ~a of the pendulum bob ~a is equal to the acceleration due to gravity. ~a is perpendicular to the bob’s trajectory. ~a is equal to the instantaneous rate of change in velocity. ~a is tangent to the bob’s trajectory.