The moving rod in fig. 21–11 is 12.0 cm long and is pulled at a speed of 18.0 cm/s. if the magnetic field is 0.800 t, calculate
(a) the emf developed, and
(b) the electric field felt by electrons in the rod.

Frost wedging occurs when water seeps into a crack in a rock, freezes, and causes the crack in the rock to widen. t or f

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?