A student weighing 700 N climbs a flight of stairs 5.0 m high in 10 s. What power was required?
3.5 × 10^2 W
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From its definition and property values, calculate the coefficient of thermal expansion, ?, for saturated water at 403 K. Then compare your results with the value in the table.
GIVEN • Saturated water at 400 K FIND • The thermal expansion coefficient, ?, from its definition
Which of the following is true of meteors?
A) They are not stars. B) They orbit Terrestrial planets. C) They are composed of frozen water. D) They do not contain rock or metal.
Opposing shearing forces of 3000 N are applied to the 4.00-cm × 5.00-cm faces of a metal block measuring 3.00 cm × 4.00 cm × 5.00 cm. By what amount does the block become slanted? The shear modulus for this metal is 8.10 × 1010 N/m2
A) 5.56 × 10-7 m B) 9.88 × 10-7 m C) 6.98 × 10-6 m D) 1.54 × 10-6 m E) 3.08 × 10-6 m
What is the wavelength of a monochromatic light beam, where the photon energy is 4.81 × 10^-19 J? (h = 6.63 × 10^-34 J×s, c = 3.00 × 10^8 m/s, and 1 nm = 10-9 m)
a. 354 nm c. 787 nm b. 414 nm d. 398 nm