Afloodlight at ground level is illuminating a building that is 100m away. a man 1.8m tall is walking from the floodlight to the building along a path that is perpendicular to the building. if he is walking at the rate of 1m/s, at what rate is his shadow on the building decreasing when he is 60 m from the building expert answer

Asmall 21 kilogram canoe is floating downriver at a speed of 1 m/s. what is the canoe's kinetic energy?

Most short-period comets do not have randomly oriented orbits because

Select light for the type of wave, adjust the wavelength so that the light is red, and increase the amplitude of the light to the max. then, select the start button at the source location to begin producing the waves. light is a form of electromagnetic wave, containing oscillating electric and magnetic fields. the wave amplitude detector mentioned above shows how the electric field oscillates in time at the location of the probe. the amplitude of the wave at the location of the probe is equal to the maximum electric field measured. how does the amplitude of the wave depend on the distance from the source?