In a double-slit experiment, the slit separation is 2.0 mm, and two wavelengths, 750 nm and 900 nm, illuminate the slits. A screen is placed 2.0 m from the slits
At what distance from the central maximum on the screen will a bright fringe from one pattern first coincide with a bright fringe from the other?
A) 4.5 mm B) 3.0 mm C) 6.0 mm D) 1.5 mm
A
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Describe the surface features of Venus. If the atmosphere is so thick and the planet is so hot, how do we know about these surface features on Venus?
What will be an ideal response?
X-rays easily penetrate Earth's atmosphere and reach the ground from space
a. True b. False Indicate whether the statement is true or false
Why are there fewer large impact craters on the Earth's seafloor than on the continents?
A) Seafloor crust is younger than continental crust, so it has had less time in which to suffer impacts. B) The oceans slow large impactors and prevent them from making craters. C) Erosion erases impact craters must faster on the ocean bottom than on land. D) Most impacts occur on the land.
The diagram below shows five cylinders, each cylinder rotating with constant angular velocity about its central axis. The magnitude of the tangential speed of one point of each cylinder is shown, along with each cylinder's radius and mass. Which cylinder has the largest angular momentum?
A.
B.
C.
D.
E.
