If it were possible to move Earth so that its new orbit was twice as large as it is now, then the length of a year (in terms of the number of days) would also double.
Answer the following statement true (T) or false (F)
False
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Estimation: Which of the following is the most reasonable estimate of the number of characters (typed letters or numbers) in a 609-page book? Assume an average of 194 words per page and a reasonable average number of letters per word.
A. 5 × 105 char B. 5 × 107 char C. 5 × 106 char D. 5 × 104 char
Two charges of 15 pC and ?40 pC are inside a cube with sides that are of 0.40-m length. Determine the net electric flux through the surface of the cube.
A. +2.8 N ? m2/C B. ?1.1 N ? m2/C C. +1.1 N ? m2/C D. ?2.8 N ? m2/C E. ?0.47 N ? m2/C
The motion of a piston in an auto engine is simple harmonic. If the piston travels back and forth over a distance of 10 cm, and the piston has a mass of 1.5 kg, what is the maximum speed of the piston and the maximum force acting on the piston when the engine is running at 4 200 rpm?