The peculiar system SS 433 I. is emitting beams of energy and matter. II. is producing a spectrum with both a red and a blue shift. III. probably contains an accretion disk. IV. is the result of a planetary nebula

a. I
b. III
c. II & III
d. I, II, & III
e. I, II, III, & IV


D

Physics & Space Science

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The distance between two successive ‘like' points on a wave is the wave's __________

Fill in the blank(s) with correct word

Physics & Space Science

Two masses are connected by a string which passes over a pulley with negligible mass and friction. One mass hangs vertically and one mass slides on a frictionless 30.0 degrees incline. The vertically hanging mass is 6.00 kg and the mass on the incline is 4.00 kg. The acceleration of the 4.00 kg mass is



A. 2.98
B. 3.92
C. 5.88
D. 6.86
E. 7.84

Physics & Space Science

Consider a two-slit interference experiment like the one shown in figure Q3.7b. The distance between adjacent bright spots in the interference pattern on the screen (A) increases, (B) decreases, or (C) remains the same if, The distance between the slits and the screen increases.

A. increases B. decreases C. remains the same

Physics & Space Science

Isaac Newton was able to estimate a value for G, the universal gravitational constant, from the following data: the radius of the Earth is about 6 400 km, the average density of rocks is about 5.50 g/cm3, and g = 9.80 m/s2 near the surface of the Earth. What value did Newton obtain for G?

Physics & Space Science