Kinetic Energy: An electron has a relativistic momentum of 1.1 × 10-21 kg ? m/s. What percent of its total energy is its kinetic energy? (melectron = 9.11 ×10-31 kg, c = 3.0 × 108 m/s)
Fill in the blank(s) with the appropriate word(s).
76%
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The rings of Saturn are created from and controlled by the planet's moons
a. True b. False Indicate whether the statement is true or false
What kind of light warms the stratosphere?
a. infrared b. visible c. ultraviolet
A brass pipe is twisted by torques T 5 800 N # m acting at the ends causing an angle of twist of 3.58. The pipe has the following properties: L 5 2.1 m, d1 5 38 mm, and d2 5 56 mm. The shear modulus of elas-ticity G of the pipe is approximately:
(A) 36.1 GPa
(B) 37.3 GPa
(C) 38.7 GPa
(D) 40.6 GPa
The San Andreas fault in California is thought to be a boundary of two plates
a. that are separating from one another. b. where one is pushing over the top of the other. c. that are sliding horizontally past one another. d. that are basically at rest.