How can the strength of an electromagnet be increased?

The slotted link is pinned at o, and as a result of rotation it drives the peg p along the horizontal guide. compute the magnitude of the velocity and acceleration of p along the horizontal guide. compute the magnitudes of the velocity and acceleration of p as a function of θ if θ=(3t) rad, where t is measured in seconds.

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

J. j. thomson’s experiment disproved the theory that an atom