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joejo

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My teacher for my online course gave me an assignment. But never gave us notes/lessons on the questions asked. I will list a few below and I was wondering if someone could please give me some links where I can find some information that will help me understand how to answer these questions.

Amy pours 1 kg of water at 7.0 ° C into a bowl. Calculate the amount of heat energy needed to bring this water to a boil. The specific heat for water is 4186 J/kg. ° C.

A block made of an unknown substance has a mass of 1.5 kg and a temperature of 15.0 ° C. When 2.6 x 104 J of heat is added to the block, its temperature rises to 90 ° C. Calculate the specific heat capacity to the unknown substance

When 1 kg of water at 1000C is mixed with 10 kg of water at 00C, the

**equilibrium temperature will be**

Calculate

**the amount of heat energy**required to boil 1.0 kg of water at 100 ° C into steam at 100 ° C. The latent heat of vaporization for water is 2.26 x 106 J/kg

An elevator motor lifts the elevator full of passengers to a height of 12 m in 30 s. If the mass of the elevator and passengers is 1000 kg,

**what is the power developed by the motor**

The efficiency of an incandescent light bulb is only 4.0%.

**Calculate the amount of electric energy**that must be input to the bulb in order to get 100 J of light energy from the bulb