How long does it take for a train traveling 60.4 miles per hour to travel 81 miles?

A) 0.75 hours
B) 0.745 hours
C) 1.34 hours
D) 1.3 hours
E) 1 hour


D

Physics & Space Science

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What is true of Jupiter's magnetosphere?

A) Although its surface field is greater, since the planet is larger the total field is actually weaker than Earth's. B) It does not trap protons and electrons, as Earth's Van Allen belts do. C) It has a tail that extends at least to Saturn's orbit. D) It is most extensive on the sunward side of the planet. E) It is only slightly stronger than Saturn's.

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Two tiny grains of sand having charges of 4.0 ?C and -4.0 ?C are situated along the x-axis at x1 = 2.0 m and x2 = -2.0 m

What is electric potential energy of the system of these grains assuming that at infinity the energy of the system is zero? (k = 1/4??0 = 9.0 × 109 N ? m2/C2 ) A) -36 mJ B) 36 mJ C) 0 J D) -72 mJ E) 72 mJ

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The quark structure of the neutron is udd

a. True b. False Indicate whether the statement is true or false

Physics & Space Science

In the experiment, m1 and m2 have the same value. How would the data change if m1 and m 2 were slightly different in value?

Physics & Space Science