3rd A beam falls into an almost crowded water glass and this is wit...

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3rd A beam falls into an almost crowded water glass and this is witnessed from a distance of 5 cm and a height from the glass edge of 2 cm. The bottom of the glass is 3 cm wide. 2 cm h? 3 cm 5 cm How tall is the glass? 4. Draw the wave having an amplitude of 0.5 m and a frequency of 4 Hz in a coordinate system. 5. A flute of 60 cm can create a closed tube of lengths 20, 40 and 60 cm. What frequency have the root tones for this followed? * 6th A wave front with amplitude 0.6 m falls against a fixed bridge (ie, the bridge does not move vertically or laterally) which is submerged 25% of its thickness in the water when the surface is stationary. An oak with the edge height 50 cm above the water surface is docked against the bridge, and the bridge is 20 cm thick. Is there a risk that the oak will slide under the bridge when the wave front hits the oak and the bridge? * 6th A wave front with amplitude 0.6 m falls against a fixed bridge (ie, the bridge does not move vertically or laterally) which is submerged 25% of its thickness in the water when the surface is stationary. An oak with the edge height 50 cm above the water surface is docked against the bridge, and the bridge is 20 cm thick. Is there a risk that the oak will slide under the bridge when the wave front hits the oak and the bridge? * 7th A standing wave in an open tube has a frequency of 103 Hz at the 2nd harmonic. How far is the tube?

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