💬 👋 We’re always here. Join our Discord to connect with other students 24/7, any time, night or day.Join Here!

Get the answer to your homework problem.

Try Numerade free for 7 days

Like

Report

With a 1200-W toaster, how much electrical energy is needed to make a slice of toast (cooking time = 1 minute)? At 9.0 cents/kW · h , how much does this cost?

$E=0.02 \mathrm{kW} \cdot \mathrm{h}$ and Total cost $=0.18 \mathrm{cents}$

Physics 102 Electricity and Magnetism

Chapter 20

Electric Current, Resistance, and Ohm's Law

Current, Resistance, and Electromotive Force

James K.

May 14, 2021

An electric kettle contains 1.5 kg of water. The specific heat capacity of water is 4180 J Kg-1K-1. Calculate the amount of energy required to raise the temperature of the water from 15°C to 100°C. (4 marks)

Rutgers, The State University of New Jersey

University of Washington

Hope College

University of Winnipeg

Lectures

11:53

In physics, a charge is a …

10:30

The electric force is a ph…

04:31

(II) How many kWh of energ…

03:35

01:26

00:59

A certain appliance requir…

02:33

A An electric heater is ra…

03:38

If electrical energy costs…

00:55

The current through a toas…

01:59

The resistance of a bagel …

01:21

An electric water heater c…

03:41

What is the cost of operat…

If electricity costs $15 \…

Using the formula power $=…

01:23

A toaster is rated at 600 …

01:27

A toaster is rated at $600…

02:29

08:00

A $1150-\mathrm{W}$ toaste…

03:26

The cost of electricity va…

The cost of energy deliver…

04:27

If the price of electrical…

in this problem when you took over the energy required and how much that would cost. Oh, we can start with during dumbbell. You die in this case where power is giving us 1200 words. Uh, cooking time, cooking time states united as small t that is given as one minute since one hour is equal to 60 minutes so we can convert to one minute two number of hours. That is one upon 60 hours on duh. See, in part a, we need to capture it energy. So since you know the power is Equator Energy over time, therefore, power is given astral 100 watts. But does he quit Energy do ordered by given time as one upon 60 others. So therefore, in order to cover it energy denoted as e the mighty application or 1200 what and number of followers that is one upon 60. Therefore, it is coming as 20 water over and we need to convert it into a killer walked over. So energy will be in this case train t watch over divided by 1000 and we will monte care of 1000. So finally we're getting it as 0.0 to kill. Oh, what hour? And this is our for a sizer. So energy consumed for one minute is always little 10.2 kid a war cover now instead, be since it is given, it will cost around nine Saints Berkin Award. So write it Here your cost. Nine cents Parochial Watch over. So for a zero borns you to kill. Watch our the cost off energy consumption. You see quit too. 0.0 kilowatt hour might apply by nine cents Broke you were cover. So the answer is you know, point to one it since I mean this is a sick and answer security costs to make a slight off goes we can right here therefore the total cost to make slice off post He's 0.21 egg sense and there's a final answer bigotry of court.

View More Answers From This Book

Find Another Textbook

In physics, a charge is a physical property of matter that causes it to expe…

The electric force is a physical force exerted by electrically charged parti…

(II) How many kWh of energy does a $550-\mathrm{W}$ toaster use in the morni…

(II) How many kWh of energy does a $550 .$ W toaster use in the morning if i…

(II) How many kWh of energy does a 550-W toaster use in the morning if it is…

A certain appliance requires 225 watts when it is switched on. How much woul…

A An electric heater is rated at 1500 $\mathrm{W}$ , a toaster at$750 \m…

If electrical energy costs $\$ 0.12$ per kilowatt-hour, how much does it cos…

The current through a toaster that is connected to a $120-\mathrm{V}$ source…

The resistance of a bagel toaster is 14$\Omega .$ To prepare a bagel, the to…

An electric water heater consumes 5.00 kW for 2.00 h per day. What is the co…

What is the cost of operating a 3.00-W electric clock for a year if the cost…

If electricity costs $15 \mathrm{c} / \mathrm{kWh}$, how much does it cost t…

Using the formula power $=$ current $\times$ voltage, find the current drawn…

A toaster is rated at 600 $\mathrm{W}$ when connected to a $120-\mathrm{V}$ …

A toaster is rated at $600 \mathrm{W}$ when connected to a $120-\mathrm{V}$ …

What is the cost of operating a 3.00 -W electric clock for a year if the cos…

A $1150-\mathrm{W}$ toaster and an $825-\mathrm{W}$ microwave oven are conne…

The cost of electricity varies widely throughout the United States; $\$ 0.12…

The cost of energy delivered to residences by electrical transmission varies…

The cost of electricity varies widely through the United States; $\$ 0.120 /…

If the price of electrical energy is $0.10 per kilowatt hour, what is the co…

04:05

The diameter of 0-gauge copper wire is 8.252 mm. Find the resistance of a 1.…

04:52

(a) What is the intensity in watts per meter squared of a just barely audibl…

02:52

An American traveler in New Zealand carries a transformer to convert New Zea…

08:39

Integrated Concepts Calculate the angular velocity $\omega$ of an electr…

01:55

What beat frequencies result if a piano hammer hits three strings that emit …

00:38

The factor of $10^{-12}$ in the range of intensities to which the ear can re…

05:03

A $3000-$ -kg cannon is mounted so that it can recoil only in the horizontal…

02:54

Unreasonable Results(a) On a particular day, it takes $9.60 \times 10^{3…

09:38

Derive an expression for the current in a system like that in Figure 23.11 ,…