Adisk 40 cm in diameter and 5 cm thick is to be cast of pure aluminum in an open mold casting operation. the melting temperature of aluminum = 660c, and the pouring temperature will be 800c. assume that the amount of aluminum heated will be 5% more than what is needed to fill the mold cavity. compute the amount of heat that must be added to the metal to heat it to the pouring temperature, starting from a room temperature of 25c.

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?