A temperature of degrees 260 Celsius is equivalent to _____ Kelvin
a. 8.6
b. 533.2
c. 126.7
d. –13.0
b
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A 90. kg person is sitting in a boat at rest with a mass of 100 kg. In the boat is a stone with a mass of 5.00 kg. The person throws the stone at 4.00 m/s horizontally in the NORTH direction. The velocity of the person and the boat after the throwing of the stone is
A. 2.00 m/s NORTH. B. 1.21 m/s SOUTH. C. 1.21 m/s NORTH. D. 0.11 m/s SOUTH. E. 0.11 m/s NORTH.
A 120-m long copper wire (resistivity 1.68 × 10-8 ? ? m) has resistance 6.0 ?. What is the diameter of the wire?
A) 0.0065 mm B) 0.065 mm C) 0.65 mm D) 0.65 cm E) 0.65 m
Starting from rest, a wheel undergoes constant angular acceleration for a period of time T. At which of the following times does the average angular acceleration equal the instantaneous angular acceleration?
a. 0.50T b. 0.67T c. 0.71T d. all of the above
In a double-slit experiment, the intensity of light at the center of the central fringe is measured to be 6.2 × 10-6 W/ m2. What is the intensity halfway between the center of the fringe and the first dark band?
A) 6.2 × 10-6 W/ m2 B) 3.1 × 10-6 W/ m2 C) 4.7 × 10-6 W/ m2 D) 1.6 × 10-6 W/ m2 E) 0.12 × 10-6 W/ m2