A supersonic plane passes overhead at a speed of 500 m/s. If you hear the sonic boom (shock wave) 4.00 s after the plane is directly overhead, at what altitude is the plane flying? Assume the speed of sound in air is 340 m/s
A) 1.36 km
B) 2.16 km
C) 1.85 km
D) 2.45 km
E) The plane is not flying fast enough to produce a shock wave.
C
You might also like to view...
Starting outside the region with the magnetic field, a single square coil of wire enters, moves across, and then leaves the region with a uniform magnetic field 
perpendicular to the page so that the graph shown below represents the induced emf. The loop moves at constant velocity 
roman';vertical-align:middle;" />. As seen from above, a counterclockwise emf is regarded as positive. In which direction did the loop move over the plane of the page?
?
?
A. The loop moved from bottom to top.
B. The loop moved from top to bottom.
C. The loop moved from left to right.
D. The loop moved from right to left.
E. All of these directions of motion will produce the graph of emf vs t.
If the electric potential at a point in space is zero, then the electric field at that point must also be zero
A) True B) False
The values of n and ? for a 4f subshell are
A) n = 4, ? = 4. B) n = 4, ? = 3. C) n = 3, ? = 3. D) n = 4, ? = 2. E) n = 3, ? = -3.
An observer in the Northern Hemisphere watches the sky for several hours. Due to the motion of Earth, this observer notices that the stars near the north celestial pole appear to move
a. counter clockwise around the celestial pole. b. clockwise around the celestial pole. c. from left to right. d. from right to left. e. nearly vertically upward.