A swimming pool is 3 m wide and 6 m long. The water depth is 1 m. A small boat is placed in the pool and loaded with gold bars. How high does the water level rise if 20 standard gold bars, each of mass 12.4 kg, are placed into the boat?

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

Which changes of state do the labels represent? a: b: c:

Three charge are arranged as shown in the diagram. the magnitude of the net electrical force acting on the +6 uc charge, rounded to the tenths place, is .