For a projectile launched horizontally, the vertical component of its velocity
A)
is zero.
B)
remains a non-zero constant.
C)
continuously increases.
D)
continuously decreases.
E)
any of the above, depending on position.
C
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Time Dilation: A muon at rest decays in 2.2 ?s. Moving at 99.00% the speed of light, it would be seen to "live" for how long?
Fill in the blank(s) with the appropriate word(s).
Resistivity and Temperature: A platinum wire is used to determine the melting point of indium. The resistance of the platinum wire is 2.000 ? at 20°C and increases to 3.072 ? as indium just starts to melt. What is the melting point of indium? The temperature coefficient of resistivity for platinum is 3.927 × 10-3/C°.
A. 116°C B. 136°C C. 156°C D. 351°C
Substitute the correct prefix to the fun-word "10-cards"
A) milli B) deka C) giga D) pico E) tera
If a proton and an electron are placed a short distance apart,
A) they will be repelled from each other. B) they will feel no force. C) they will be attracted to each other. D) the electron will be repelled while the proton will be attracted. E) None of the above.