MATHIMATICALY DETERMINE THE RESULTANT FORCE IF TWO FORCES A AND B ACT ON ANOBJECT FORCE A IS 85N AND IS AT AN ANGLE OF 20 DEGREE TO HOIRZONTZL. FORCE B IS 125N AND IS AT AN ANGLE OF 60 DEGREE TO THE HOIRZONTAL

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.

Ways that industry and agriculture use physical properties to separate substances

Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)