The graph in the figure shows the position of a particle as it travels along the x- axis. What is the magnitude of the average speed of the particle between t = 1.0 s and t = 4.0 s? x (m) 4.0 2.0- t (s) 1.0 2.0 3.0 4.0 -2.0- -4.0- Select one: O A. 1.0 m/s O B. 1.3 m/s O C. 0.50 m/s O D. 0.67 m/s O E. 0.25 m/s

In thermodynamics, the Van der Waal's equation relates the mean pressure, p, of a substance to its molar volume v at some temperature T as follows: Chemists are interested in the curves, called isotherms, described by this equation when the temperature is held fixed, and R is a constant. What is the value of when p = 3.5 and v = 9.7? a. 10769.096062 5.9 (p+ 52 ) (v − 1.7) - = RT O b. -0.432409 O c. -0.299589 d. -0.507066 e. 0.011601 O f. -0.444243 dp du

5.1 The total distance covered by the object in the first 6 seconds. 5.2 The displacement of the object in the first 6 seconds. 5.3 The average speed during the whole trip. 5.4 The average velocity during the whole trip. 5.5 The instantaneous velocity at t=Bs. x (m) 4- 3. -1+ -2