Determine the work completed by each of the forces

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Reference no: EM1386549

Q. White light containing wavelengths from 400 nm to 750 nm falls on a grating with 7000 lines/cm. How wide is the first-order spectrum on a screen 2.10 m away?

Q. A grocery cart with a mass of 17 kg is pushed at constant speed along an aisle by a force F = 12 N. The applied force acts at a 20° angle to the horizontal. Determine the work completed by each of the forces on the cart if the aisle is 17 m long.

Reference no: EM1386549

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