A cube of aluminum is at a depth of 1.000 km under seawater whose density is 
The bulk stress on the cube due to the seawater is
A. 
B. 
C. 
D. 
E. 
E.
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In a paramagnetic material if a large magnetic filed is first applied and then reduced to zero, the intensity of magnetization is then equal to _________.
Fill in the blank(s) with the appropriate word(s).
Radioactivity Basics: In positron decay, the number of protons in the nucleus is
A. decreased by 1. B. decreased by 2. C. increased by 1. D. increased by 2. E. remains unchanged.
Weight and g: At a given point above Earth's surface, the acceleration due to gravity is equal to 7.8 m/s2. What is the altitude of this point above Earth's surface? (G = 6.67 × 10-11 N ? m2/kg2, Mearth = 5.97 × 1024 kg, Rearth = 6.38 × 106 m)
A. 770 km B. 970 km C. 1500 km D. 2000 km E. 2400 km
In 1994, fragments of Comet P/Shoemaker-Levy 9 collided with Jupiter. Assume that these fragments came from an infinite distance away with zero initial speed and fell into Jupiter
What was their speed when they arrived at Jupiter's surface? Jupiter has a mass of 1.90 × 1027 kg and a radius of 71.4 × 106 m, and G = 6.67 x 10-11 N•m2/kg2. A) 10,400 m/s B) 11,200 m/s C) 35,500 m/s D) 42,100 m/s E) 59,600 m/s