1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kodGreya [7K]
4 years ago
5

An electric toaster is rated 1200 watts at 120 volts. what is the total electrical energy used to operate the toaster for 30 sec

onds
Physics
2 answers:
Tresset [83]4 years ago
8 0

Answer : Total electrical energy is 36000 J.

Explanation :

It is given that,

Power of electric toaster, P = 1200 Watts

Voltage, V = 120 Volts

Time, t = 30 s

Electric energy is defined as the product of the power and the time taken.

E=Pt

E=1200\ W\times 30\ s

E=36000\ J

Total electrical energy used to operate the toaster for 30 seconds is 36000 J.

maks197457 [2]4 years ago
8 0

P = power rating of the electrical toaster = 1200 watts

t = time of operation = 30 sec

E = total electrical energy

Total electrical energy is given as

E = P t

inserting the above values

E = 1200 x 30

E = 36000 J

You might be interested in
An air mass that forms over Arizona and New Mexico will be?
vlada-n [284]
Continental Tropical Air Mass. Your welcome matey
5 0
3 years ago
Help me, 100 points to answer right, answer without context will be reported
dlinn [17]
734 is the answer for the chronic blood exchange service of new france
7 0
3 years ago
A trip is taken that passes through the following points in order
AURORKA [14]

Answer:

15? I actually don't know

3 0
3 years ago
The instrument which is commonly used to measure the intensity of radioactivity is called a
tatyana61 [14]
The instrument is a Geiger counter and is used to measure radioactive level around people's bodies.
4 0
3 years ago
Read 2 more answers
5.00 kg of liquid water is heated to 100.0 °C in a closed system. At this temperature, the density of liquid water is 958 kg/m3.
user100 [1]

Answer:

1.04\times 10^7\ J.

Explanation:

In the question given :

Pressure is constant

Therefore, Work done, W=P\times\Delta V

Pressure, P=1.01 × 105 Pa.

Final volume, V_f=8.50\ m^3.

Initial volume, V_i=\dfrac{Mass}{density}=\dfrac{5}{958}=5.22\times10^-3\ m^3.

Therefore, W=8.58\times 10^{5}\ J.

Also, Heat Given, Q=m\times L=5\times 2.26\times 10^{6}\ J=1.13\times 10^7\ J.

Also, according to First law of thermodynamics:

\Delta U=Q-W=(1.13\times 10^7)-(8.58\times 10^5)=1.04\times 10^7\ J.

Hence, this is the required solution.

8 0
3 years ago
Other questions:
  • A 1.50-m string of weight 0.0125 N is tied to the ceiling at its upper end, and the lower end supports a weight W. Ignore the ve
    7·1 answer
  • What is the role of the air spaces in insulating materials? Select all that apply.
    9·2 answers
  • Which type of element typically loses an electron to become an ion?
    14·1 answer
  • A solar flare is a sudden, rapid, and intense change in the brightness of the sun. Which of these is most
    7·1 answer
  • A point charge Q is located a short distance from a point charge 3Q, and no other charges are present. If the electrical force o
    5·1 answer
  • A carbon rod with a radius of 2.1 mm is used to make a resistor. The resistivity of this material is 3.2 × 10−5 Ω · m. What leng
    11·1 answer
  • Olaf is standing on a sheet of ice that covers the football stadium parking lot in Buffalo, New York; there is negligible fricti
    15·1 answer
  • Which do you think the correct answer was wrong<br> Help plis:(
    11·1 answer
  • Man start to moves from point A (Initial Point) to Point B (Final Point) in a given
    10·1 answer
  • Gravitational potential energy = the energy due to an objects
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!