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
irga5000 [103]
2 years ago
14

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
1 answer:
Anarel [89]2 years ago
3 0
Energy is calculated as power*time, so give the wattage of 1200 W (equivalent to 1200 Joules/second) and time of 30 seconds, multiplying these gives 36000 J or 36 kJ of electrical energy.

If electrical charge or current is needed: Power = voltage * current, so given the power of 1200 watts and voltage of 120 V, current is 1200 W / 120 V = 10 Amperes. Charge is calculated by multiplying 10 A*30 s = 300 C.
You might be interested in
For an object to orbit another object
STatiana [176]
B. Inertia and gravity must be balanced.

8 0
2 years ago
What elements are in NaOH
agasfer [191]

Answer: Sodim hydroxide have a formula of NaOH . So the elements present in the compound is sodium,oxygen and hydrogen.

Explanation:

3 0
2 years ago
Read 2 more answers
Gravitational potential energy is a form of potential energy
Gre4nikov [31]
True because it has "falling" ability
5 0
3 years ago
How do you tell a stars life expectancy based on an hr diagram?
e-lub [12.9K]
The X-axis of the H-R Diagram indicates the star's surface temperature in degrees Kelvin.  The Y-axis, on the other hand, indicates luminosity, or brightness.

Main sequence refers to a roughly diagonal, slightly S-curved line stretching between the upper-left and lower-right corners on which main sequence stars chart. They maintain a predictable relationship between luminosity and temperature: the brighter, the hotter. The upper-right quadrant of the H-R diagram is home to newly discovered red giants while the lower-left quadrant of the H-R Diagram belongs almost exclusively to white dwarfs.
8 0
3 years ago
Five physical properties of metals
Alekssandra [29.7K]
Metals are malleable and ductile.
Metals are good conductors of heat and electricity.
Metals are lustrous (shiny) and can be polished.
Metals are solids at room temperature (except mercury, which is liquid).
Metals are tough and strong.
hope this helps!
3 0
1 year ago
Other questions:
  • HELP!!
    11·2 answers
  • Which statement describes the difference between renewable and nonrenewable energy sources
    14·1 answer
  • Do substances that heat up quickly have high or low specific heat capacity?
    5·1 answer
  • If the change in velocity increases, what happens to the acceleration during the same time period?
    14·2 answers
  • Calculate the displacement traveled (in m) from start to finish.
    12·2 answers
  • Nodes give a vertebrate’s back flexibility.<br> A. True<br> B. False
    7·2 answers
  • 1. What is the inductance of a series RL circuit in which R= 1.0 K ohm if the current increases to one-third of
    6·1 answer
  • 6. An elephant is putting 25,000 newtons of force on Leah. The elephant
    8·1 answer
  • The Sloan Digital Sky Survey includes many thousands of galaxies in its spectroscopic catalogs. How are the distances to most of
    9·1 answer
  • Q/C S Starting with the definition of work, prove that at every point on an equipotential surface, the surface must be perpendic
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!