Abusy chipmunk runs back and forth along a straight line of acorns that has been set out between his burrow and a nearby tree. at some instant the chipmunk moves with a velocity of -1.15 m/s. then, 2.11 s later, it moves at a velocity of 1.63 m/s. what is the chipmunk's average acceleration during the 2.11-s time interval in m/s^2?

Which two objects have the greatest gravitational force acting between them

Arunner is jogging at a steady 3.6 km/hr. when the runner is 2.9 km from the finish line, a bird begins flying from the runner to the finish line at 14.4 km/hr (4 times as fast as the runner). when the bird reaches the finish line, it turns around and flies back to the runner. even though the bird is a dodo, we will assume that it occupies only one point in space, i. e., a zero-length bird. how far does the bird travel? (b) after this first encounter, the bird then turns around and flies from the runner back to the finish line, turns around again and flies back to the runner. the bird repeats the back and forth trips until the runner reaches the finish line. how far does the bird travel from the beginning? (i. e. include the distance traveled to the first encounter)

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell