What is the thickness of electroplated gold

Reference no: EM138851

Q1. Two 53 {rm g} blocks are held 30 {rm cm} above a table. One of them is just touching a 50-long spring. The blocks are released at the same time. The block on the left hits the table at accurately the same instant as the block on the right first comes to an instantaneous rest.
What is the k constant?

Q2. You swing a 2.70 kg stone in the circle, using the full length of a thin 77.0 cm rope. At what speed must you swing it so its acceleration would be 9.8 {rm m/s^2}?

Q3. Modern electroplaters can cover a surface area of 150 m2 with one troy ounce of gold (volume = 1.811 cm3). What is the thickness of electroplated gold?

Reference no: EM138851

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