Tervals. draw the velocity vectors −v⃗ 21 and −v⃗ 43 and the acceleration vectors a⃗ 31 and a⃗ 53 representing the changes in average velocity of the object during the time intervals δt31=t3−t1 and δt53=t5−t3, respectively. assume for this problem that δt31=δt53=1s.

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.

The value of cos 30° is the same as which of the following?