A 10 m long uniform iron bar pivoted at the center of the bar is subjected to the horizontal forces F; and F2 = 200 N as shown in the picture taken from the the
bar (Bird eye view). Fy acts at X = 4,4 m to the left of the pict not an age
19° with the bar. If the iron bar stays in equilibrium with zero net conquer under these
two forces, what is the magnitude of the force F; to the nearest rester Doar
enter units in the answer
1 - 200 N

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?

The ph is the a.independent variable b.the dependent variable c.control group