Rank metals on the basis of the maximum wavelength

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Q. A uniform plank of length 2.00 m and mass 29.0 kg is supported by three ropes, as indicated by the blue vectors. Find the tension in each rope when a 690 N person is 0.500 m from the left end.

Q. Rank these metals on the basis of the maximum wavelength of light needed to free electrons from their surface.

Cesium aluminum Magnesium potassium platinum beryllium
W = 2.1 eV W=4.1 W =3.7 W =2.3 W = 6.4 W=5.0

Reference no: EM1346905

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