How long would it take for charged particles ejected from the sun to affect electrical systems on Earth, assuming the particles traveled at 1.6 million km/h?

A) A few minutes
B) A few hours
C) A few days
D) A few weeks


C) A few days

Physics & Space Science

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An ideal gas is at a pressure of 2.00 atmospheres and a temperature of 35.0 What is the molar density?

A. 84.3
B. 78.9
C. 70.2
D. 66.7
E. 60.4

Physics & Space Science

Two point charges of + 5.00 ?C and + 8.00 ?C are placed inside a cube of edge length 0.100 m. The net electric flux due to these charges is given by

A) 0.340 × 106 Nm2/C B) 0.450 × 106 Nm2/C C) 1.47 × 106 Nm2/C D) 3.80 × 106 Nm2/C E) 4.20 × 106 Nm2/C

Physics & Space Science

A magnifier used for reading small print is shaped like a hemisphere 2.0 cm in radius, placed on top of a cylinder of the same radius and 2.0 cm tall. The flat side of the magnifier is placed directly over the print on a book

Where does the image of the print appear to be? (The index of refraction of the magnifier is 1.52.) A) 30.4 cm above the top of the magnifier B) 12.7 cm above the top of the magnifier C) 32.1 cm below the top of the magnifier D) 12.5 cm below the top of the magnifier E) at the center of the hemisphere

Physics & Space Science

One of the most likely places an advanced civilization might leave an artifact for us to find would be

A) in the desert of Roswell, New Mexico B) the L4 and L5 points in the Earth—Moon system C) in the Cydonia region of Mars D) on the far side of the Moon

Physics & Space Science