Consider a cylinder of gas that is kept at constant temperature and whose volume can be changed by moving a piston. Suppose that, initially, the container holds 2 moles of gas at a pressure of 100 kPa and a temperature of 300 K
With the temperature held constant, the pressure is raised to 101 kPa, producing a change in volume. By calculating the change in volume, determine the bulk modulus for this gas, under these conditions. A) 1.01 × 105 N/m2
B) 2.02 × 105 N/m2
C) 1.01 × 104 N/m2
D) 2.02 × 104 N/m2
E) 2.02 × 106 N/m2
A
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A 1000-kg car approaches an intersection traveling north at 20.0 m/s
A 1200-kg car approaches the same intersection traveling east at 22.0 m/s. The two cars collide at the intersection and lock together. Ignoring any external forces that act on the cars during the collision, what is the velocity of the cars immediately after the collision? A) 29.7 m/s in a direction 47.7° east of north B) 21.1 m/s in a direction 47.7° west of south C) 15.1 m/s in a direction 52.8° east of north D) 21.1 m/s in a direction 52.8° east of north E) 21.1 m/s in a direction 47.7° east of north
When was the existence of the neutron confirmed?
a. in ancient times b. in 1895 c. in 1932 d. in 1969
Graphical Addition: The sum of two vectors of fixed magnitudes has its minimum magnitude when the angle between these vectors is
A. 0°. B. 90°. C. 270°. D. 180°. E. 360°.