Which of the following has units of momentum?
A) N-m
B) kg-s/m
C) kg-m2/s
D) J-s/m
E) kg- /
D
Physics & Space Science
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What is your latitude if the north celestial pole appears on your horizon?
A) 90° N B) 90° S C) 0° D) 45° N
Physics & Space Science
When something cannot be directly observed, it can be represented by a?
A. hypothesis B. model C. graph D. theory
Physics & Space Science
How long a tuning fork vibrates when its handle is held against a table is most related to
A) its frequency. B) resonance. C) the conservation of energy. D) the length of its prongs.
Physics & Space Science
A rectangular plate in plane stress is subjected to normal stresses ?x 5 35 MPa, ?y 5 26 MPa, and shear stress ?xy 5 14 MPa. The ratio of the magnitudes of the principal stresses (?1/?2) is approximately:
(A) 0.8
(B) 1.5
(C) 2.1
(D) 2.9
Physics & Space Science