Two cellos are being played in a duet. At a certain point, one cello plays a note of frequency 148 Hz and the other plays a note of frequency 167 Hz. Does the audience hear a beat, and if so, at what frequency?

Yes, at frequency 0.053 Hz

Yes, at frequency 19 Hz

Yes, at frequency 9 Hz

A beat is not heard.

This problem has been solved! see the answera non-uniform fire escape ladder is 6.0m long whenextended to the icy alley below. it is held at the top by africtionless pivot, and there is neglibible frictional force fromthe icy surface at the bottom. the ladder weighs 250n, and it'scenter of gravity is 2.0m along the ladder from the bottom. amother and child of total weight 750n are on the ladder 1.5m fromthe pivot. the ladder makes an angle θ with the horizontal. find the magnitude and direction ofa) the force exerted by the icy alley on the ladderb) the force exerted by the ladder on the pivotc) do your answers in part a and b depend on the angle?

Describe the function of the endomembrane system? what organelles are involved?

A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?