20. a mass of gas has a volume of 4 m3, a temperature of 290 k, and an absolute pressure of 475 kpa. when the gas is allowed to expand to 6.5 m3, its new temperature is 277 k. what's the absolute pressure of the gas after expansion?

a. 293.9 kpa
b. 104.1 kpa
c. 279.2 kpa
d. 178.5 kpa

b) returns freshwater to the earth.

c) returns freshwater to the earth.c) occurs after condensation.

d) returns freshwater to the earth.c) occurs after condensation.d) roughly equal to the amount of evaporation.

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the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

you get 2.3=1.21*\frac{a}2 or 4.6=1.21a or a=3.802 (b)

explanation: