Please answer the following seven questions.

1. 0.0062000 m has how many significant figures? (a) 3 (b) 4 (c) 5 (d) 5 2. lfthe vector 13 has a magnitude of 25 m and makes an angle of 30 with the +x axis, the vector B: (a) has a magnitude of 25 m. (b) has the same direction as E? but a magnitude of 25 m. (c) makes an angle of 30 with the +x axis. (d) has the opposite direction of E and a magnitude of 25 m. 3. in the displacement vs. time graphs below, which graph/s (could be more than one ) show/s the largest magnitude of average velocity? (a) Trial B (b) Trial A and B (c) Trial A and D (d) Trial B and D (e) Trial C I Trial A r Trial B /4, [:7Z, ( Trial C \\ Trial D 4. in the displacement vs. time graphs above, which graph/s (could be more than one) show/s constant velocity? (3) Trial A and B (b) Trial C (c) Trial C and D (d) Trial A, B and C (e) Trial A, C, and D 7. A car sitting at a red light begins to accelerate at 2.0 m/s' when the light turns green. It continues with this acceleration until it reaches a speed of 20 m/s. It then travels at this speed for another few minutes. How far does the car travel in the first 30 s after the light changes to green? [4 marks]5. Bacteria vary somewhat in size, but a diameter of 2.0 pm is not unusual. What would be the volume (In cubic centimeters) and surface area (in square millimeters) of such a bacterium, assuming that it is spherical? [3 marks] 6. Three vectors are shown in Figure. (3) Find the x and )1 components of each vector. [2 marks] (b) Find the magnitude and direction (the counterclockwise angle with the +x axis) ofthe resultant (sum) vector. [2 marks] (c) Sketch a clear graphical sum to check your answer in part (c). [1 mark] I} (80 N)