Alarge truck is crossing a bridge 1 mile long. the bridge can only hold 14000 lbs, which is the exact weight of the truck. the truck makes it half way across the bridge and stops. a bird lands on the truck. does the bridge collapse?

To create electromagnetic induction, which of the following has to move? a. a wire b. a magnet c. a transformer d. either a or b

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.

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?