A cable is attached between BB and CC. The cable is attached in such a way that it has a tension of TBCTBC along its length. The tensile force will attempt to pull BB toward CC. The force exerted on BB has a z component with a magnitude of 10 lb10 lb . What is the magnitude of the tension in the cable, TBCTBC? Express your answer to three significant figures and include the appropriate units.

The position of a dragonfly that is flying parallel to the ground is given as a function of time by r⃗ =[2.90m+(0.0900m/s2)t2]i^− (0.0150m/s3)t3j^. a: at what value of t does the velocity vector of the insect make an angle of 34.0 degree clockwise from the x-axis? b: at the time calculated in part (a), what is the magnitude of the acceleration vector of the insect? c : at the time calculated in part (a), what is the direction of the acceleration vector of the insect?

A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?

In a system, when potential energy decreases, then entropy also decreases. true false