According to the nebular theory for the formation of the solar system,
A) planets should be rotating in the same direction as they orbit the Sun
B) planets can be rotating in any random direction compared to the direction they orbit the Sun
C) planets should be rotating in the opposite direction to the direction they orbit the Sun
D) no prediction is made as to the directions of rotations of the planets
A
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A bimetallic strip is made out of two strips of metal bonded together. Each strip is 20.0 cm long and 1.00 mm thick
One strip has a coefficient of thermal expansion 4.00 × 10-6/K and the other has a coefficient of thermal expansion 3.00 × 10-6/K. At 20.0°C the strip is straight. What is the inner radius of curvature of the composite strip at 200°C? A) 15.2 cm B) 2.22 m C) 1.27 m D) 34.8 cm E) 5.56 m
If a K0 meson at rest decays in 0.90 × 10^-10 s, how far will a K0 meson moving at 0.95c travel through a bubble chamber? (c = 3.00 × 10^8 m/s)
a. 2.6 cm c. 9.3 cm b. 8.2 cm d. 13 cm
A 15. ?F capacitor is connected to a 50. V battery and becomes fully charged. The battery is removed and a slab of dielectric that completely fills the space between the plates is inserted
If the dielectric has a dielectric constant of 5.0, what is the voltage across the capacitor's plates after the slab is inserted? A) 0.25 kV B) 10. V C) 2.0 V D) 0.10 kV E) 20. V
Potential of Point-Charges: Point charges +4.00 ?C and +2.00 ?C are placed at the opposite corners of a rectangle as shown in the figure. What is the potential difference VA - VB? (k = 1/4??0 = 8.99 × 109 N ? m2/C2) 
A. +203 kV B. -203 kV C. -22.5 kV D. +22.5 kV E. 0.00 kV