the horizontal beam in (figure 1) weighs 190 n, and its center of gravity is at its center. a) find the tension in the cable. b) find the horizontal component of the force exerted on the beam at the wall. c) find the vertical component of the force exerted on the beam at the wall.

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.