What is at the very center of our galaxy? this question is difficult to answer because the center is completely obscured to our eyes behind a large amount of dust. on the basis of what you know about dust from previous chapters, what can be done to improve our view of the galaxy’s center?

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.

How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a.the kinetic energy increases.b.the kinetic energy decreases.c.the kinetic energy remains the same.d.the kinetic energy is always zero.

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z