What is the use of the Doppler effect able to tell you about the motion of an object? What is it unable to tell you?
What will be an ideal response?
The Doppler effect can only determine the part of the object's velocity that is directed towards, or away from the observer on a straight line. The Doppler effect cannot detect any part of the velocity that is perpendicular to the line of sight.
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If in a double-slit experiment the distance to the screen is increased, which of the following happens to the interference pattern shown on the screen?
A) The minima get closer together. B) The maxima stay at the same position. C) The minima and maxima stay at the same position. D) The maxima get further apart. E) The minima stay at the same position.
The changing shapes of constellations in the night sky is caused by
A) the rotation of our planet about its axis. B) the revolution of our planet around the Sun. C) the movement of our planet within the Milky Way. D) the tilt of Earth's axis.
When are Mercury and Venus easiest to observe from Earth? Why? How much of then can we see at that time?
What will be an ideal response?
A long straight metal rod has a radius of 2.0 mm and a surface charge of density 0.40 nC/m2. Determine the magnitude of the electric field 3.0 mm from the axis.
A. 18 N/C B. 23 N/C C. 30 N/C D. 15 N/C E. 60 N/C