Make sure that "Scientific Notation" is selected for Force Values. Express your answer in scientific notation, ex 5.208 x 10-9 N What is the force of gravity acting on the spheres under the following conditions? Mass of 1 = 25 kg Location of 1 = 4 m Mass of 2 = 25 kg Location of 2 = 6 m

Aballet student who learns with the of his instructor is demonstrating learning.

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)

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) =_