At a picnic, there is a contest in which hoses are used to shoot water at a beach ball from three directions. as a result, three forces act on the ball, 1, 2, and 3 (see drawing). the magnitudes of 1 and 2 are f1 = 40.0 newtons and f2 = 80.0 newtons. using a scale drawing and the graphical technique determine the following such that the resultant force acting on the ball is zero.

Which of the following elements is in the same period as phosphorus? a. carbon c. nitrogen b. magnesium d. oxygen select the best answer from the choices provided a b c d

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?

Dc versus ac problem. suppose your dc power supply is set to 15 v and the vertical setting on the oscilloscope is at 5 v/div. how many divisions will the trace deflect if you connect the output of the power supply to the scope with the a input switch set on dc? how many divisions if the switch is on ac?