12. EMF produced in a coil A circular coil of 169 turns and radius 3 cm is placed in and perpendicular to a magnetic field of intensity 0.4 T. If the
intensity is reduced to zero in 0.004 s. What EMF is produced in the coil? (Write your answer to 1 decimal place.)

Distinguish between a transverse wave and a longitudinal wave.

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)

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?