Consider a hoop of radius R and mass M rolling without slipping. Which form of kinetic energy is larger, translational or rotational?
A) Translational kinetic energy is larger.
B) Rotational kinetic energy is larger.
C) Both are equal.
D) You need to know the speed of the hoop to tell.
E) You need to know the acceleration of the hoop to tell.
C
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A straight wire (length = 8.0 m) is bent to form a square. If the wire carries a current of 20 A, what is the magnitude of the magnetic field at the center of the square?
A. 17 ?T B. 14 ?T C. 11 ?T D. 20 ?T E. 36 ?T
Calculate the entropy of mixing for 2 moles of an alloy that has a composition of 30 atomic %copper and 70 atomic %nickel.
What will be an ideal response?
By what length will a slab of concrete that is originally 18 m long contract when the temperature drops from 24°C to -16°C? The coefficient of linear thermal expansion for this concrete is 1.0 × 10-5 K-1
A) 0.50 cm B) 0.72 cm C) 1.2 cm D) 1.5 cm
Br has an atomic mass of 78.918336 u, and 
Kr has an atomic mass of 78.920084 u. Which is the correct decay process (or the likeliest if more than one is possible)?
A. 
B. 
C. 
D. 
E. 