a 1kg object is explodes and breaks up in to three pieces .one piece has a mass of 400g and has velocity of (15i + 10j )m/s. a second pieces has a mass of 250g and has a velocity of ( 25i - 10j )m/s what is the velocity of the third piece?

If y gets smaller as x gets bigger and y have an relationship?

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?

Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.