How does the seven year cycle of weather compare to the yearly seasonal cycle with regards to the change in the earth’s temperature?
What will be an ideal response?
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In a double-slit experiment, the distance between the slits is 0.2 mm and the distance to the screen is 100 cm. What is the phase difference (in degrees) between the waves from the two slits arriving at a point 5 mm from the central maximum when the wavelength is 400 nm? (Convert your result so the angle is between 0 and 360°.)
A. 90° B. 180° C. 270° D. 360° E. 160°
In latitudes where the subsurface layer of soil always remains frozen, the frozen layer is called
a. an aquifer. b. the frost table. c. a glacier. d. permafrost.
Relative to a stationary observer, a moving object
A) appears shorter than normal. B) appears longer than normal. C) keeps its same length. D) can do any of the above. It depends on the relative velocity between the observer and the object. E) can do any of the above. It depends on the relative energy between the observer and the object.
A spaceship, traveling at 0.560c towards a stationary space platform, launches a secondary towards the station with a speed of 0.100c relative to the spaceship
What is the speed of the secondary rocket relative to the space platform? A) 0.460c B) 0.575c C) 0.600c D) 0.625c E) 0.660c