In a 10 degrees Celsius room, a 7 m long tube with one end blocked, the 2 lowest resonant frequencies are found. A 7 m long tube in a 10 degree Celsius room.

Find the speed of sound in this room.
Find the 2 lowest resonant frequencies of the tube as stated in the problem.
Find the 2 lowest resonant frequencies of the tube if the tube were to be opened at both ends.

Aspecified volume of space contains an electric field for which the magnitude is given by e=e0cos(ωt). suppose that e0 = 20 v/m and ω = 1.0 × 107 s−1. part a what is the maximum displacement current through a 0.80 m2 cross-sectional area of this volume? express your answer with the appropriate units. idisp,max i d i s p , m a x = nothing nothing request answer part b how would this area have to be oriented relative to the electric field to get this maximum displacement current?

1which body contains the majority of the mass in the solar system earth jupiter the moon the sun 2 what keeps the objects in the solar system such as planets orbiting around the sun the force of gravity the galaxy exerts on all objects within it including the solar system the great distance between the sun and the planets the sun's nuclear fusion which acts on each object the gravitational force between the sun and each object in the solar system

Based on this activity, is kinetic energy always transformed into potential energy?