Velma passes Mort at a high speed. Each holds a meter stick, oriented perpendicular to the direction of relative motion. Mort observes that
A) his meter stick is 1 m long, and Velma's meter stick is longer than 1 m.
B) his meter stick and Velma's meter stick are both shorter than 1 m.
C) his meter stick and Velma's meter stick are both 1 m long.
D) his meter stick is longer than 1 m, and Velma's meter stick is 1 m long.
E) his meter stick is 1 m long, and Velma's meter stick is less than 1 m long.
C
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Kinetic energy is proportional to speed
Indicate whether the statement is true or false
The discovery of a supernova by Tycho Brahe in 1572 contradicted the commonly held belief that the universe was
A) unchanging B) spherical C) infinite D) perfect
What nuclide has 14 protons and 16 neutrons?
A. 16S B. 14O C. 30Si D. 30S
A steel bracket ABC (EI 5 4.2 3 106 N # m2) with span length L 5 4.5 m and height H 5 2 m is subjected to load P 5 15 kN at C. The maximum horizontal displacement of joint C is approximately:
(A) 22 mm
(B) 31 mm
(C) 38 mm
(D) 40 mm