Assuming Birdman flies at a speed of 14 m/s, how high should Birdman
fly to hit the bucket if the bucket is
placed 55 m from the start of the
field?

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.

There are weak or strong attractive forces between atoms of liquids with a high viscosity

Which situation will have the highest resistance? a.long wire and high temperatureb.short wire and high temperaturec.long wire and cold temperaturedshort wire and low temperature