Afrequency generator (a device that produces sinusoidal signals whose frequency and amplitude can be independently set) is used to power a horn. the frequency is set to 2000 hz, and for a particular amplitude the sound intensity is measured to be 0.050 w/m2 at a distance of 6.0 m . part a what is the power output of the horn in this case? express your answer with the appropriate units.

•• al and bert are jogging side-by-side on a trail in the woods at a speed of 0.75 m/s. suddenly al sees the end of the trail 35 m ahead and decides to speed up to reach it. he accelerates at a constant rate of 0.50 m/s2, while bert continues on at a constant speed. (a) how long does it take al to reach the end of the trail? (b) once he reaches the end of the trail, he immediately turns around and heads back along the trail with a constant speed of 0.85 m/s. how long does it take him to meet up with bert? (c) how far are they from the end of the trail when they meet?

What are the starting materials for nuclear fission? two small nuclei two large nuclei a neutron and a large nucleus a neutron and a small nucleus

What is the single most important equation in all of physics?