A41.0 kg child swings in a swing supported by two chains, each 2.98 m long. (a) if the tension in each chain at the lowest point is 348 n, find the child's speed at the lowest point. m/s (b) what is the force exerted by the seat on the child at the lowest point? (neglect the mass of the seat.) n (upward)

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?

Current from a charged capacitor lights a bulb. as time goes on the brightness of the

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.6 m below the tank bottom which is a = 6.7 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute). report your answer in meters to two decimal places.