A food processor draws 8.47 A of current when connected to a potential difference of 110 V. a. What is the power consumed by this appliance?

b. How much electrical energy is consumed by this food processor monthly (30 days) if it is used on average of 10.0 min every day?

c. Assume that the price of electrical energy is 7.00 $/kWh. What is the monthly cost of using this food processor?

2. The electric meter in a house indicates that the refrigerator consumes 70.0 kWh in a week.

a. What is the power consumption of the refrigerator?

b. Assuming it is connected to a potential difference of 120 V , how much current does the refrigerator draw?

3. The heating element of an electric broiler dissipates 2.8 kW of power when connected to a potential difference of 120 V.

a. What is the resistance of the element?

b. How much current does the broiler draw? Use two ways to find out, and verify your answer.

How many milliliters of water at 23 °c with a density of 1.00 g/ml must be mixed with 180 ml (about 6 oz) of coffee at 95 °c so that the resulting combination will have a temperature of 60 °c? assume that coffee and water have the same density and the same specific heat. how much will the temperature of a cup (180 g) of coffee at 95 °c be reduced when a 45 g silver spoon (specific heat 0.24 j/g °c) at 25 °c is placed in the coffee and the two are allowed to reach the same temperature? assume that the coffee has the same density and specific heat as water. a 45-g aluminum spoon (specific heat 0.88 j/g °c) at 24 °c is placed in 180 ml (180 g) of coffee at 85 °c and the temperature of the two become equal. (a) what is the final temperature when the two become equal? assume that coffee has the same specific heat as water. (b) the first time a student solved this problem she got an answer of 88 °c. explain why this is clearly an incorrect answer.