A ball is thrown upward at a velocity of 19.6 m/s. What is its velocity after 3.0 s, assuming no air?
A) 9.8 m/s upward
B) 9.8 m/s downward
C) 0 m/s
D) 19.6 m/s downward
B
You might also like to view...
When a metal is illuminated by light, photoelectrons are observed provided the light's wavelength is less than 520 nm. What is the metal's work function?
A) 2.4 eV B) 2.6 eV C) 2.8 eV D) 3.0 eV
In the context of the double-slit experiment, quantum nonlocality refers to
A) the fact that the entire matter field or EM field instantaneously collapses to the single interaction point when the field interacts with the screen. B) our inability to precisely predict the point at which a spread-out matter field or EM field will interact with the screen. C) the fact that each interaction with the screen occurs over a broad area of the screen. D) the fact that the electron beam or light beam goes through both slits rather than only one. E) the fact that the particles of matter or radiation are instantaneously replaced by a spread-out matter field or EM field when the particles impact the screen.
In any sequence of sedimentary rock layers that have not been subjected to stress, you would expect to find
A) horizontal layers. B) older layers at the bottom and younger layers at the top. C) fossils in the bottom layers and inclusions in the upper layers. D) older horizontal layers at the bottom with younger horizontal layers at the top.
What does the constellation Cygnus consist of?
A) All the bright stars that lie inside the illustration of a swan on star maps. B) All of the stars and other objects that lie inside the agreed upon boundary lines. C) The stars inside of the Summer Triangle. D) About 9 stars connected by two imaginary lines. E) The star Deneb.