Which telescope will be launched into solar orbit and eventually replace observations made by the Hubble Space Telescope?

a. Hinode
b. Kepler
c. Chandra
d. JWST
e. Fermi

d

Physics & Space Science

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If you pound a feather with a hammer, on which one is a greater force exerted?

A) always the feather B) always the hammer C) The magnitude of the force is always exactly the same on both of them. D) If the feather moves, then the greater force was exerted on it. Otherwise forces of the same magnitude were exerted on both.

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Physics & Space Science

An 18.0 pm wavelength photon is scattered by a stationary electron through an angle of 120°. The wavelength of the scattered photon, in pm, is closest to:

A) 19.2 B) 20.4 C) 21.6 D) 22.9 E) 24.1

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Physics & Space Science

Choose the statement below that does NOT help explain why the ionization energy of cadmium is so much larger than that of indium

a.The energy required to remove an electron from a filled subshell is much larger than the energy required to remove an electron from a nearly empty subshell. b. The atomic radius of indium is larger than that of cadmium. c. Electrons in the 4d subshell spend more time inside the closed shells than does the additional 5p electron and therefore are more shielded. d. The additional electron in the 5p subshell is at higher energy and therefore easier to remove from the atom.

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Physics & Space Science

What is the resistance of a wire made of a material with a resistivity of 3.2 × 10^-8 W × m if its length is 2.5 m and its diameter is 0.50 mm?

a. 0.16 W b. 0.10 W c. 1.28 W d. 0.41 W e. 0.81 W

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Physics & Space Science