A long cylindrical conductor (radius = 1.0 mm) carries a charge density of 4.0 pC/m and is inside a coaxial, hollow, cylindrical conductor (inner radius = 3.0 mm, outer radius = 4.0 mm) that has a total charge of ?8.0 pC/m. What is the magnitude of the electric field 2.0 mm from the axis of these conductors?
a. 24 N/C
b. 18 N/C
c. zero
d. 36 N/C
e. 226 N/C
d
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A three dimensional image made using a laser is a(n)
a. emission spectrum b. absorption spectrum c. wave function d. hologram e. photoelectric effect
Suppose that a ship is accelerating through space in such a way that the passengers are experiencing a constant force (resulting from the thrust of the ship) equivalent to the total weight of the ship and passengers on Earth. From the point of view of observers on Earth, how does the ship accelerate?
A) At first, it has a nearly constant acceleration of 9.8 m/s2. But as it approaches the speed of light, its acceleration gradually slows in such a way that it never stops accelerating, but it never reaches the speed of light either. B) It has a constant acceleration of 9.8 m/s2, therefore increasing its speed by 9.8 m/s with each passing second. C) At first, it has a large acceleration, much larger than 9.8 m/s2. But when it reaches the speed of light it stops accelerating. D) It has a constant acceleration of 9.8 m/s2 until it reaches a speed of half the speed of light. Then its acceleration suddenly slows so that it can't go much faster.
Venus has many more _______________ than Earth, but not nearly as many as Earth's Moon
Fill in the blank(s) with correct word