Vector v¹, is 6.6 units long and points along the negative x axis. vector v² is 8.5 units long and points at +55° to the positive x axis.(a) what are the x and y components of each vector? (b) determine the sum v¹+v²(magnitude and angle).

What is the magnitude of the resultant vector round your answer to the nearest tenth

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little