A 1000 W toaster takes one minute to toast a slice of bread. At 7.0 cents/(kW...
How many kWh of energy does a 543 W toaster use in the morning if it is in operation for a total of 8 min? (answer in kWh) At a cost of 12 cents/kWh, estimate how much would this add to your monthly electric energy bill if you made toast four mornings per week. (Assume a month of 4 weeks.) (answer in cents/month)
If I could receive help on both that'd be great. Questions on Charge 1 What is the total energy stored in a car battery that is rated 12V, 100A.h? Give answer both in Joules and kWh. 2 A toaster draws 10A when connected to 120V. a. How much charge goes through the toaster in the span of one minute? b. How many electrons pass through the toaster in one minute? c. How many moles of electrons is this? d. What...
An electric heater is rated at 1500 W, a toaster at 750 W, and an electric grill at 1000 W. The three appliances are connected in parallel to common 120 V household circuit. (a) How much current does each draw? (b) Is a circuit with a 25.0 Amp circuit breaker sufficient in this situation? Numerically justify your answer.
Problem 1: Microwave vs. Toaster Oven Your friend considers himself a Hot Pockets connoisseur. He eats one every day and insists on cooking it in the toaster oven in order to get the perfect crispy crust. You’re trying to convince him that cooking them in the microwave would be more environmentally friendly. (a) Toaster oven: If it takes 28 minutes to cook a Hot Pocket in a 1400 W toaster oven, how much electricity (in kWh) does this consume every...
A computer is left on all week. It continually consumes 15 W of power. Electricity costs 10 cents per kW∙hr. How much does this cost?
(a) Find the useful power output (in W) of an elevator motor that lifts a 2800 kg load a height of 35.0 m in 12.0 s, if it also increases the speed from rest to 4.00 m/s. Note that the total mass of the counterbalanced system is 10,000 kg-so that only 2800 kg is raised in height, but the full 10,000 kg is accelerated. (b) What does it cost (in cents), if electricity is $0.0900 per kw-h? cents Additional Materials...
If electrical energy costs 12 cents, or $0.12, per kilowate hour, how much does it cost to (a) burn a 100-W lightbulb for 24 h? (b) Operate an electric oven for 5.0 hifit carries a current of 20.0 A at 220 V?
A refrigerator using 1013 W runs one-fourth of the time. How much does the electricity cost to run the refrigerator each month (30 days) at 17 cents per kWh? $_____________
4) a) What is the current in a 75 W the filament of a light bulb when you tum the light on? Electric sockets supply electricity at about 110 V b) How much charge does flow through the filament during 10.0 second? c) How many electrons pass during this time? d) What is the resistance of the filament? e) What is your monthly payment if you keep the light bulb on for 4 hours every day? The cost of each...
22. A computer is left on all week. It continually consumes 15 W of power. Electricity costs 10 cents per kW-hr. How much does this cost? a. 25 cents b. 36 cents $2.52 d. $15.12 23. An electron and a proton are 1.0x10 m. apart. Calculate the force between them in Newtons, and whether it's attractive or repulsive: a. 2.3x10- N, repulsive b. 2.3x10-20 N, attractive c2.3x10-2 N, repulsive d. 2.3x10-25 N, attractive Which of the following differs from the...