Question 1 If a process occurs resulting in a increase in the system's potential energy while the environment does work on the system, which of the following is true? There is not enough information given to determine whether a kinetic energy change is present. The system's kinetic energy will remain unaltered. The system's kinetic energy will increase. O The system's kinetic energy will decrease. Question 2 |Up A In the figure provided, a particle is travelling along a closed vertical path. If the particle is starting and finishing at point A, how much work is done on the particle by gravity? 0 9.8 J O O J O 14.5 J O 4.9 JQuestion 3 Block 1 and Block 2 have the same mass, m, and are released from the top of two inclined planes of the same height making 30 and 60 angles with the horizontal directoin, respectively. If the coefficient of friction is the same in both cases, which of the blocks is going slower when it reaches the bottom of its respective incline? O Block 2 is slower Both blocks have the same speed at the bottom. More information is needed to know which block is faster. O Block 1 is slower Question 4 Consider vectors A and B, given by A = (0.200) i + (3.90) 3 B = (-5.00) i + (-6.90) 3. What is the dot product A . B? O -27.9 O 18.1 O 25.9 O 35.3