Which best describes a system made up of ice, water, and steam existing together?
a. absolute zero
c. ice point
b. triple point
d. steam point
B
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Using an angle of 30
to supply the force required to slide a box along a floor with a coefficient of friction of 0.30, which would require the least force to move it?
A. pull it with a rope B. push it C. either push or pull D. not enough information to solve
A cubical gaussian surface surrounds a long, straight, charged filament that passes perpendicularly through two opposite faces. No other charges are nearby. Over how many of the cube’s faces is the electric field zero?
1.0 2.2 3.4 4.6
A hollow aluminum shaft (G 5 27 GPa, d2 5 96 mm, and d1 5 52 mm) has an angle of twist per unit length of 1.88/m due to torques T. The resulting maximum tensile stress in the shaft is approx-imately:
(A) 38 MPa
(B) 41 MPa
(C) 49 MPa
(A) 38 MPa
(B) 41 MPa
(C) 49 MPa
(D) 58 MPa
The type of EM radiation that causes your skin to tan is
a. ultraviolet b. infrared c. x rays d. microwave e. gamma rays