With respect to the earth, object 1 is moving at speed 0.80 c to the right. Object 2 is moving in the same direction at speed 0.80 c with respect to object 1. How fast is object 2 moving with respect to the earth?
A)
0.64 c
B)
0.98 c
C)
0.16 c
D)
1.6 c
E)
0.80 c
B
You might also like to view...
Which of the following was the most perfect region according to Aristotle's philosophy?
A) The center of the Sun B) The heavens C) Earth's surface D) Earth's center
A blacksmith is flattening a steel plate, 10 cm × 15 cm × 1 mm. He has heated the plate to 900 K. If the emissivity of the plate is 0.75, what is the total rate of radiation of energy? The Stefan-Boltzmann constant is 5.67 x 10-8 W/(m2•K4)
Ignore heat exchange with the surroundings. A) 360 W B) 760 W C) 790 W D) 850 W E) 880 W
True or False? From the definition of capacitance C = Q/?V, it follows that an uncharged capacitor has a capacitance of zero
1.True 2.False
Precession is
A) when the elliptical orbits of planets slip forward with each revolution. B) the process of planetary evolution. C) the stage before planets stabilize into a stationary orbit. D) the wobbling of a planet's axis of rotation.