A subwoofer is a type of speaker which plays only the very low notes in a song or movie. Which of the following
frequencies would you expect to be able to hear from a subwoofer?

10 Hz

25 Hz

750 Hz

1,050 Hz

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

The slope of a velocity time graph over any interval of time gives the during that interval

The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.