Aparticle moves along a straight line such that its acceleration is a=(4t2−2) m/s2, where t is in seconds. when t = 0, the particle is located 1 mto the left of the origin, and when t = 2 s, it is 20 mto the left of the origin. determine the position of the particle when t = 3.9 s . express your answer to three significant figures and include the appropriate units.

Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?