A child in a tree house is playing with a toy rocket. The tree house is 6.8 meters above level

ground. If she launches the rocket at a velocity of 5.5 m/s at a 60° angle, how far horizontally

from the launch position will the rocket travel before it lands?

A 1.3 m

B. 2.7m

C. 4.8 m

D. 8.4 m

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) =_