Please answer this set of questions Calculate the heat required to convert 2kg of ice...

Please answer this set of questions
Calculate the heat required to convert 2kg of ice at 0°C to water at 0°C*

*A uniform meter rule AB is balanced on a knife edge which is 60cm from B and a mass 22g hangs at C which is 10cm from A. Calculate the mass of the bar*

*The coefficient of static friction of a body of mass 20kg tilted till it reaches an angle 30° is*

*What volume of alcohol with a density of 8.4x10² with have the same mass as 4.2m³ of petrol whose density is 7.2x10²kg/m³*

*An object of mass 100g projected vertically upwards from the ground level has a velocity of 20m/s at a height of 10m. Calculate the initial kinetic energy at the ground level*?

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Asked by Prince on 3rd June, 2021