You live at a latitude of 28° N. What is the angle between the northern horizon and the north celestial pole?
a. 62°
b. 28°
c. 40°
d. 23.4°
e. 5°
b
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A very massive object A and a less massive object B move toward each other under the influence of gravity. Which force, if either, is greater?
A) the force on A B) the force on B C) both forces are the same.
The thermal conductivity of silver at 212°F is 238 Btu/(h ft °F). What is the conductivity in SI units?
GIVEN - Thermal conductivity of silver (k) = 238 Btu/(h ft °F) FIND - Thermal conductivity of silver in SI units: W/(m K)
If the 5th-order fringe in Young's double-slit experiment occurs at an angle of 38.7°, what is the relationship between the wavelength ? and the distance between slits, d?
a. d = 3.12? b. d = 40.00? c. d = 8.00? d. d = 10.30? e. d = 0.12?
Lightning occurs as
A) water droplets in a cloud interact with one another, making the cloud electrically charged. B) electrical energy flows from a cloud to the ground. C) the surrounding air expands. D) electric energy flow from cloud to ground as interaction of water droplets electrically charge the cloud.