A coil with 20 turns of wire is wrapped around a tube with a cross-sectional area of 1.0 m2. A magnetic field is applied at a right angle at 0.50 T. If the coil is pulled out of the magnetic field in 5 seconds, what emf is
induced in the coil?

Two friends are having a conversation. anna says a satellite in orbit is in freefall because the satellite keeps falling toward earth. tom says a satellite in orbit is not in freefall because the acceleration due to gravity is not 9.80 m/2 . who do you agree with and why?

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.

Properties seen when one one substance changes to another are known as properties