When a 440-hz tuning fork and a piano key are struck together, five beats are heard. if the pitch of the note on the piano is lower than the tuning fork, what is the frequency of the note?

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.

Which levels of government establish and implement educational requirements for minors

If element x has 99 protons how many electrons does it have