1.

circles (concyclic, 3 pts given and do they form equilateral, right angled triangle)

2.

Why did the time period of rotation of Earth decrease by microseconds after the Japan 2011 earthquake?

• The oceanic floor and land disturbances caused the effect of rate of rotation of Earth.
• Redistribution of mass caused MOI to increase.
• Redistribution of mass caused MOI to decrease.
• The kinetic energy of Earth increased due to earthquakes.

3.

NaOH is deliquescent

4.

A motorcyclist is trying to jump across a path as shown by driving horizontally off a cliff A at a speed of 5 m/s. Ignore air resistance and take g = 10m/s² . The speed with which he touches the cliff B is?

5.

Two capacitors, of capacitance C, are connected in series. If one of them is filled with a dielectric substance K, what is the effective capacitance?

6.

Matrices when the solution of equations is not defined