Describe how impacts between objects in the solar system have create notable features in the solar system such as craters and the moon

Explain vector addition, triangle method and parallelogram method

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.

Astudent pushes a 60-n block across the floor for a distance of 10 m. how much work was done to move the block