1.The 2-lb cylindrical plug A slides down the smooth path and embeds in the 4-lb spring block C with...? k = 80 lb/ft. Determine: 1. The velocity of a & C right after impact 2. The maximum deflection of the spring. Use energy and momentum.
2.A 0.75 m high rectangular sharp-crested weir extends across a 2.2m wide rectangular channel. When the head is 32 cm, determine the flow rate
3.A heat pump operates between 250K and 300K. The cooling rate is 3.6 kW while the work input rate is 1.2 kW. The COP for the heating achieved is? Provide full details of work to receive good rating.