Irequire some assistance. an event at a certain location is described below. magma from within earth's upper mantle moves to the surface and erupts to form lava flows and ash deposits. these deposits collect over time and become bigger. which landform will be created at the location? the subject is false cause of the lack of the right subject. sorry

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

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

Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?