A relaxed eye has a focal point of 25.2 mm causing farsightedness. What power of lens is required to correct the person's vision if the distance from the lens to the retina is 2.1 cm?

What causes the formation of ocean currents?

In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?