A 10kg cannon ball in flight with a speed of 50 m/s in the positive x direction explodes into 3 pieces. A 2.5kg piece goes off at an angel of 30 degrees to the positive x axis with a speed of 60m/s and 4.5kg piece goes off an angle of -45 degrees to the x axis with a speed of 75m/s. what is the mass, velocity and momentum of the third piece? can i have an explaination

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?

How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a. the kinetic energy increases. b.the kinetic energy decreases. c.the kinetic energy remains the same. d.the kinetic energy is always zero.

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.