A motorboat is travelling towards the shore at 15.0 m/s when the lighthouse on the shore sounds a fog-horn with a frequency of 180.0 Hz. At what frequency do the occupants of the boat hear the horn (in Hz)?

Which statement best describes how private industry decides where to spend the money on research and development

Quantum mechanics applies to subatomic, atomic, nanometer-size, and micrometer-size systems. nanometer, micrometer, and kilometer-size systems. atomic, nanometer-size, and micrometer-size systems. subatomic, atomic, and nanometer-size systems.

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?