The coil of an ac generator has 50 loops and a cross-sectional area of 0.25 m2. What is the maximum emf that can be generated by this generator if it is spinning with an angular speed of 4.0 rad/s in a 2.0-T magnetic field

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

This is the number of complete movements of a wave per second.

22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?