The symbol indicating the number of nucleons in a nucleus is N
Indicate whether the statement is true or false
F
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A new electric power plant has an efficiency of 42%. For every 100 barrels of oil needed to run the turbine, how many are essentially lost as waste heat (in barrels of oil) to the environment?
A. 21 B. 42 C. 58 D. 10 E. 79
A future news release might report that a new planet has been found around a star very similar to our Sun. The system contains other planets as well like our solar system. This newly discovered planet is claimed to have a mass 40 times that of Earth and is located nearly 25 AU from the star it orbits. Which of the following would be a reasonable prediction about this planet, assuming it formed
like our solar system? I. The planet will probably have a mean density of around 5 g/cm3. II. The planet will probably have a radius of around five to ten times greater than Earth's. III. The planet will probably have several satellites. IV. The planet will probably have a composition that is mostly hydrogen and helium. a. I & IV b. I, II, & III c. II, III, & IV d. I, II, & IV e. I, II, III, & IV
Geography is a discipline defined by a specific body of content and subject matter rather than by an approach
Indicate whether the statement is true or False.
SAE No. 10 oil has a viscosity of 0.20 Pa-s. How long would it take to pour 4.0 L of oil through a funnel with a neck 15. cm long and 2.0 cm in diameter?
(Assume the surface of the oil is kept 6.0 cm above the top of the neck, and neglect any drag effects due to the upper part of the funnel.) A) 105 s B) 52 s C) 1.5 minutes D) 46 s E) 84 s