The node of a standing wave represents a point of
A. no motion
B. maximum motion
A. no motion
You might also like to view...
Compare how doubling the diameter of a mirror will affect both resolution and light gathering power
What will be an ideal response?
A racecar goes around a 200 m radius curve at a constant speed of 40 m/s. Its acceleration is __________
Fill in the blank(s) with correct word
Observationally, a key distinction between a white dwarf supernova and a massive-star supernova is that the spectrum of a massive-star supernova shows prominent hydrogen lines, while the spectrum of a white dwarf supernova does not. Why don't we see prominent hydrogen lines in the spectrum of a white dwarf supernova?
A) White dwarf supernovae occur so far away that their hydrogen lines become too dim to see. B) During a white dwarf supernova, all the white dwarf's hydrogen fuses instantly to make helium. C) White dwarfs are stellar corpses that contain little or no hydrogen, so they do not show hydrogen lines when they explode. D) The hydrogen lines of white dwarf supernovae are so redshifted that we cannot detect them.
The howler monkey is the loudest land animal and, under some circumstances, can be heard up to a distance of 8.9 km
Assume the acoustic output of a howler to be uniform in all directions and that the threshold of hearing is 1.0 × 10-12 W/m2. A juvenile howler monkey has an acoustic output of What is the ratio of the acoustic intensity produced by the juvenile howler to the reference intensity I0, at a distance of 210 m? A) 110 B) 230 C) 76 D) 170 E) 300