The fastest moving planet in a solar system is the
A) smallest planet.
B) most massive planet.
C) planet nearest the Sun.
D) planet farthest from the Sun.
E) all move at the same speed.
Answer: C
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Indicate whether the statement is true or false
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A geophysicist measures the magnetic force on a proton that is moving vertically downward at a point 1.996 km/s at the earth's equator. At that location, the earth's magnetic magnetic field is horizontal and has a strength of 0.40 × 10-4 T
What are the magnitude and direction of the force she will measure? (e = 1.60 × 10-19 C)
In a section of horizontal pipe with a diameter of 3.0 cm, the pressure is 100 kPa and water is flowing with a speed of 1.5 m/s. The pipe narrows to 2.0 cm
What is the pressure in the narrower region? Treat the water as an ideal incompressible fluid. A) 44 kPa B) 48 kPa C) 67 kPa D) 230 kPa E) 95 kPa