An organ pipe open at one end, but closed at the other, is vibrating in its fundamental mode, producing sound of frequency 1800 hz. part a if you now open the closed end, the new fundamental frequency will be if you now open the closed end, the new fundamental frequency will be

a. 3600 hz
b. 1800 hz
c. 900 hz
d. 450 hz

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.

What is the angular momentum of the bar about the axle?