A s ball rolls with constant velocity across a cliff that is 0.95 m high landing 0.352 m horizontally from the of the cliff. Find time taken to fall? A.0.4s B.0.07s C.0.19s D.0.26s

One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. you see that the patch of light seems to be a circular diffraction pattern. it appears that the central maximum is about 1 cm across and you estimate that the distance from the window shade to the wall is about 3 m. what is (a) the average wavelength of sunlight? (b) the diameter of the pinhole?

You can decrease the resistance of a length of wire by

In which type of system is power held solely by the central government and not shared with regional governments? group of answer choices federal unitary confederate oligarchic