The force f⃗ pulling the string is constant; therefore the magnitude of the angular acceleration α of the wheel is constant for this configuration. find the magnitude of the angular velocity ω of the wheel when the string has been pulled a distance d. note that there are two ways to find an expression for ω; these expressions look very different but are equivalent.

Ajet plane has a sound level of 120 db at a distance of 60 m. what is the q23. sound level at a distance of 6.0 km? (60)2 (6000)? om solution 80db db, hint: 16x assume ultrasound waves travel through the body of an animal at 1540 q24. m/s. if a 30,000 hz signal were reflected off a portion of a heart which was moving toward the source at 3 m/s, what frequency signal would return to the stationary source? solution 30.117hz

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.

Area around a charged object where the objects can exert a force on another charged objects is an electric