Newton's version of Kepler's third law states: p2 = × a3 Solve this equation to find the combined mass of a planet and its satellite, given the orbital period and average separation.
A) M1 + M2 = 4G?2 ×
B) M1 + M2 = ×
C) M1 + M2 = ×
D) M1 + M2 = ×
D) M1 + M2 = ×
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The force exerted on a current-carrying wire located in an external magnetic field is directly proportional to which of the following?
a. field strength c. both A and B b. current strength d. None of the above are valid.
Which of these affects the period of a string pendulum?
a. The material used to make the string. b. The force of the initial motion. c. The mass of the bob. d. The length of the string. e. The amplitude of the swing.
A 1,800 kg car is traveling at 20.0 m/s NORTHEAST. The momentum of the car is
A. 18,000 kg m/s NORTHEAST. B. 20,000 kg m/s NORTHEAST. C. 28,000 kg m/s NORTHEAST. D. 32,000 kg m/s NORTHEAST. E. 36,000 kg m/s NORTHEAST.
The sky is blue because molecules in the atmosphere scatter blue light more effectively than red light
Indicate whether the statement is true or false