Question

One second is defined to be equal to
a) 1650763.73 periods of krypten clock
b) 652189.63 periods of Krypton Clock
c) 1650 755.73 periods of Cesium clock
d) 9192631770 periods of cesium clock​

Answer 1

Answer:

A uniform wooden plank AB of 5 m length is hinged at the end A and is supported by a vertical rope at C, which is 3.5 m away from the hinge. The wooden plank has a mass of 100 kg. A painter of weight 900 N stands at the end of the plank at B. Calculate the force F on the rope

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Explanation:

The initial and final temperatures of a liquid are measured to be 67.7+0.2

0

C and 76.3+0.3

0

C.

 Calculate the rise in temperature with error limits.

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