A gas-filled vertical cylinder, closed at the bottom end, is fitted at the top with a piston that can move freely
The mass of the piston is 10.0 kg, and the initial height of the piston above the bottom of the cylinder is 25 cm. A mass of 8.0 kg is placed on the piston. What is the resulting height of the piston, assuming that the temperature of the ideal gas is kept constant?
A) 12 cm
B) 13 cm
C) 14 cm
D) 15 cm
E) 16 cm
C
You might also like to view...
Friction: An object slides on a level floor. It slows and comes to a stop with a constant acceleration of magnitude 2.4 m/s2. What is the coefficient of kinetic friction between the object and the floor?
A. 0.24 B. 0.48 C. 0.12 D. It is impossible to determine without knowing the mass of the object.
The closest object that a typical young person with normal vision can focus on clearly is closest to
A) 1 cm. B) 10 cm. C) 25 cm. D) 50 cm. E) 75 cm.
A resistor is connected to an ideal ac power supply. (a) The phase angle between the current and voltage is
A) 0 B) ?/2 radians. C) -?/2 radians. D) ? radians. E) 3?/4 radians. (b) The current in the resistor A) leads the voltage across the resistor by 90°. B) lags the voltage across the resistor by 90°. C) is in phase with the voltage across the resistor. D) the voltage across the resistor by 45°. E) lags the voltage across the resistor by 45°. (c) How does the average power dissipated in the resistor change as the frequency in the ac power supply decreases? A) It decreases. B) It increases. C) It does not change. D) It increases or decreases depending on the sign of the phase angle. What will be an ideal response?
Thin Lenses: A convex lens has focal length f. If an object is placed at a distance between f and 2f from the lens on the principal axis, the image is located at a distance from the lens
A. of 2f. B. between f and 2f. C. of f. D. that is greater than 2f. E. of infinity.