Ann propped up a graham cracker in a shallow bowl. she then set up an electric fan to blow on the graham cracker at three different speeds. what is ann dependent variable in this experiment

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

Which accurately compares concave and convex lenses?

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?