Consider a situation where a skater pulls her arms inward, causing her rotation rate to speed up. Kinetic energy is conserved
Indicate whether the statement is true or false
F
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A 100 eV electron and a 100 eV proton have equal de Broglie wavelengths
Indicate whether the statement is true or false
In the context of the triangulation method, to find the distance to a star, astronomers use a very long baseline, which is _____
A) the size of Earth's orbit B) the diameter of Earth's orbit C) three times the radius of Earth's orbit D) double the size of Earth's orbit
A parallel plate capacitor of capacitance C0 has plates of area A with separation d between them. When it is connected to a battery of voltage V0, it has charge of magnitude Q0 on its plates. While it is connected to the battery the space between the plates is filled with a material of dielectric constant 3. After the dielectric is added, the magnitude of the charge on the plates and the potential difference between them are what?
A.
Q0, 
V0B.
V0C.
D.
E.
?Unpolarized light is passed through three successive Polaroid filters, each with its transmission axis at 45.0°to the preceding filter. What percentage of light gets through?
A. ?0% B. ?12.5% C. ?25.0% D. ?50.0% E. ?33.3%