# Posts by chrystabelle1

Total # Posts: 4

**physics**

If 50,000joules of heat is added to 10kg of lead at its melting point of 330 degrees celsius.If 2kg of lead melts,calculate the latent heat of fusion of lead

*January 12, 2012*

**maths**

If y= e(power x) + e(power -x)/2 when y =1

*December 7, 2011*

**physics**

To verify her suspicion that a rock specimen is hollow, a geologist weighs the specimen in air and in water.She finds that the specimen weighs twice as much in air as it does in water.The solid part of the specimen has a density of 5.0 multiplied by 10(cubed)kg/m(cubed).What ...

*December 6, 2011*

**maths**

If y=e(power x)+ e(power-x)/2. find x when y=1

*December 6, 2011*

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