A Hooke's law spring is compressed 12.0 cm from equilibrium and the potential energy stored is 52.0 J. What is the spring constant in this case?
a. 7 220 N/m
b. 3 610 N/m
c. 72.2 N/m
d. 0.722 N/m
e. No answer is correct.
a
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When particles in the solar nebula grew large enough, they stopped growing by accretion and began growing by condensation
Indicate whether the statement is true or false
A compound microscope has an eyepiece that
a. uses a real image from the objective as the object and forms its own real image. b. uses a real image from the objective as the object and forms a virtual image. c. uses a virtual image from the objective as the object and forms its own real image. d. uses a virtual image from the objective as the object and forms its own virtual image.
An electron is in an infinite square well (a box) that is 2.0 nm wide. The electron makes a transition from the n = 8 to the n = 7 state,
what is the wavelength of the emitted photon?(h = 6.626 × 10-34 J ? s, mel = 9.11 × 10-31 kg, 1 eV = 1.60 × 10-19) A) 880 nm B) 750 nm C) 610 nm D) 1000 nm E) 1100 nm
The mass of 1H is 1.007825 u and the mass of 1n is 1.008665 u. The mass of 12C is 12.000000 u, of 13N is 13.005739 u, and of 14N is 14.003074 u. What is the binding energy of the last proton in 13N?
A) 2.5 MeV B) 1.9 MeV C) 9.8 MeV D) 10.6 MeV E) 3.8 MeV