Spectra of the Martian surface taken from orbiting spacecraft have detected the presence of which of the following minerals that form in water?
A) hydrated clays, sulfates and silicates
B) limestones
C) zircons
D) sea and rock salts
A
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As a sinusoidal wave’s wavenumber increases, the wave’s wavelength (in a non-dispersive medium)
A. Increases. B. Decreases. C. Does not change.
In attempting to find the missing matter that seems to be required to explain observed properties of galaxies and clusters, astronomers have been able to rule out which populations?
A. weakly interacting massive particles B. hot and cold gas C. black holes D. dead white dwarfs
A capacitor, initially charged, and an inductor form an LC circuit. When the electric current in the circuit is equal to zero how much energy is stored on each device?
A) Inductor: zero energy. Capacitor: zero energy B) Inductor: Half of the maximum energy. Capacitor: Half of the maximum energy C) Inductor: maximum energy. Capacitor: zero energy D) Inductor: zero energy. Capacitor: maximum energy E) Inductor: maximum energy. Capacitor: maximum energy
The rate at which different rock units weather is called
What will be an ideal response?