The 2.4-m diameter Hubble space telescope has been placed into Earth orbit by the space shuttle. Assuming a wavelength of 710 nm, what angular resolution could this telescope achieve by Rayleigh's criterion? (1 nm = 10-9 m)
a. 5.7 × 10^-6 rad
c. 3.6 × 10^-7 rad
b. 7.5 × 10^-6 rad
d. 2.5 × 10^-7 rad
C
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A European sports car dealer claims that his product will accelerate at a constant rate from rest to a speed of 100 km/hr in 9.00 s. What distance will the sports car travel during the 9.00 s acceleration period?
A major source of chlorine gas, ci2, is from the electrolysis of brine, which is concentrated salt water, NaCI(aq). What is the sign of the electrode where the chlorine gas is formed? Is it negative or positive?
A) Positive, since the chloride ions lose electrons to form chlorine molecules. B) Negative, since the chlorine gas needs to deposit electrons to form chloride ions. C) Neither, since chlorine gas is a neutral molecule, there is not electrode attraction. D) Both, since the chloride ions from NaCl (aq) are attracted to the positive electrode to form chlorine molecules while the produced chlorine gas molecules move to deposit electrons at the negative electrode.
In a Young's double-slit experiment, both the wavelength and the slit separation are increased by 50%. What happens to the distance between two adjacent bright fringes?
a. It increases by 50%. b. It decreases by 50%. c. The distance stays the same. d. The distance increases by a 100% or more.
Rocks in the core of an anticline are ________ than rocks away from the core
A) higher B) lower C) older D) younger