Aforce causes a mass of 4 kg to have an acceleration of 8 m/s2. suppose something causes the mass to be one-quarter of its original amount. what will happen to the acceleration if the amount of force used remains the same?

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader

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.