Two satellites with equal rest masses of 100 kg are traveling toward each other in deep space. They have identical speeds of 0.600c. The satellites collide and somehow manage to stick together
What is the rest mass of the combined object after the collision? A) 200 kg
B) 225 kg
C) 250 kg
D) 275 kg
E) 300 kg
C
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A pencil has
A. no nuclei in it. B. no electric charges in it. C. enough positive charge in the nuclei to balance the negative charge of the electrons. D. electrons that are not attracted to nuclei.
A planet is detected via the Doppler method. What does the time between peaks of the stellar velocity tell us?
A) the planet's size B) the planet's mass C) the planet's density D) the orbital period of the planet E) the orbital eccentricity of the planet
An ac generator consists of a coil with 40 turns of wire, each with an area of 0.06 m2. The coil rotates in a uniform magnetic field B = 0.4 T at a constant frequency of 55Hz. What is the maximum induced emf?
A) 110 V B) 625 V C) 200 V D) 421 V E) 332 V
The two stellar populations are extremes, but, in fact, stars with intermediate properties are common
Indicate whether the statement is true or false