11. The temperature of n moles of an ideal monatomic gas is increased by T at constant pressure. The energy Q absorbed as heat, change \( E_{int} \) in internal energy, and work W done by the environment are given by: (A)\( Q = \frac{5}{2}nRT \), \( E_{int} = 0 \), \( W = -nRT \) (B)\( Q = \frac{5}{2}nRT \), \( E_{int} = \frac{5}{2}nRT \), \( W = -\frac{3}{2}nRT \) (C)\( Q = \frac{5}{2}nRT \), \( E_{int} = \frac{5}{2}nRT \), \( W = 0 \) (D)\( Q = \frac{3}{2}nRT \), \( E_{int} = 0 \), \( W = -nRT \) (E)\( Q = \frac{5}{2}nRT \), \( E_{int} = \frac{3}{2}nRT \), \( W = -nRT \)

6. A small disk of radius \( R_1 \) is fastened coaxially to a larger disk of radius \( R_2 \). The combination is free to rotate on a fixed axle, which is perpendicular to a horizontal frictionless table top, as shown in the overhead view below. The rotational inertia of the combination is I. A string is wrapped around the larger disk and attached to a block of mass m, on the table. Another string is wrapped around the smaller disk and is pulled with a force \( \overrightarrow{F} \) as shown in fig. below. The tension in the string pulling the block is: (A)\( \frac{mR_1F}{R_2} \) (B)\( \frac{mR_1R_2F}{I - mR_2^2} \) (C)\( \frac{mR_1R_2F}{I + mR_2^2} \) (D)\( \frac{mR_1R_2F}{I - mR_1R_2} \) (E)\( \frac{mR_1R_2F}{I + mR_1R_2} \)

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