Psi is a unit of force
a. True
b. False
Indicate whether the statement is true or false
False
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Magnetic Field of a Long Wire: The magnetic field at point P due to a 2.0-A current flowing in a long, straight, thin wire is 8.0 ?T. How far is point P from the wire? (?0 = 4? × 10-7 T ? m/A)
A. 2.0 cm B. 2.5 cm C. 4.0 cm D. 5.0 cm E. 10 cm
All the planets revolve around the Sun in a(n) _______________ direction
Fill in the blank(s) with correct word
Plasmas are a central part of power generation in
A) MHD generators. B) turbo generators. C) both of these D) neither of these
X-rays with a wavelength of 0.00100 nm are scattered at 130° by free electrons. What is the kinetic energy of each recoil electron?
(1 eV = 1.60 × 10-19 J, melectron = 9.11 × 10-31 kg, c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s) A) 0.50 MeV B) 0.99 MeV C) 2.0 MeV D) 0.34 MeV E) 0.68 MeV