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In the following figure, seg DH bot seg EF and seg GK bot EF. If DH = 6 cm, GK = 10 cm and A(DeltaDEF) = 150 cm^2 , then find: (i) EF (ii) A (DeltaGEF) (iii) A(squareDFGE)

The specific heat of a substance varies with temperature according to the function c = 0.20 + 0.14 T + 0.023T^(@) , with T in ""^(@)C and c in Cal//g.K , Find the energy required to raise the temperature of 1.0g of this substance from 5.0 ""^(@)C to 15""^(@)C .

The specific heat of a substance varies with temperature according to c =0.2 +0.16 T + 0.024 T^(2) with T in "^(@)c and c is cal//gk . Find the energy (in cal) required to raise the temp of 2g substance from 0^(@)to 5^(@)C

Shows a hydraulic press with the larger piston of diameter 35cm at a height of 1.5 m relative to the smaller piston of diameter 10cm. The mass on the smaller piston is 20gk. What is the force exerted on the load by the lerger piston ? The density of oil in the press is 750 "kgm"^(-3).

2gk block is kept on 1kg block as shown . The friction between 1kg block and fixed surface is absent and the coefficient of friction between 2kg block is mu=0.1 . A constant horizontal force F=4N is applied on 1kg block. If the work done by the friction on 1 kg block in 2s is -X J , then find X . Take g=10m//s^(2) .