The daredevil crawls out until the cord breaks, and then swings down holding on to the beam. The mass of the beam is 250 kg, and the mass of the daredevil is 85 kg. The length of the beam is 15 m. Before the cord breaks, θ = 50° and the angle the cord makes with the normal to the beam is φ = 20°. Find the distance out along the beam (x) the daredevil will be when the cord breaks.

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

An architect plans to use solar energy to heat the next house he designs. what principle of absorption and infrared energy can be applied to the design of the new house? how could she apply to those principals?

Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.