Applying conservation of energy to harmonic oscillators. Harmonic oscillators satisfy energy conservation (like any systems!) Using energy concepts, we can analyze lots of aspects of oscillating motion. The analysis is easiest when there is no friction (dissipation) - in which case E

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?

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply

The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).