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
prisoha [69]
3 years ago
9

How much energy (in kW-h) does a 900 Watt stove use in a week if it is used for 1.5 hours each day?

Physics
1 answer:
ioda3 years ago
3 0

Answer:

9.45 kWh

Explanation:

Energy = Power × time

E = 900 W × (1.5 h/day × 7 day)

E = 9450 Wh

E = 9.45 kWh

You might be interested in
Q: The acceleration of gravity means that for each second that passes, falling objects move 9.8m? A:True
Gelneren [198K]

Answer: false

Explanation:

4 0
3 years ago
Read 2 more answers
True or false<br><br>energy can neither be created nor be destroyed<br>​
muminat

Answer:

the correct answer is TRUE

Hope it helps you

have a nice day

4 0
3 years ago
Read 2 more answers
Electrons orbit the nucleus in specific, defined paths. Each path has a specified energy. Bohr model electron cloud model Dalton
AVprozaik [17]
<span>The answer would be A)  Bohr model

</span>
5 0
3 years ago
Read 2 more answers
g what are the bands of electromagneitc radiation and how are they related to energy frequency and wavelength
ch4aika [34]

Answer:

The details of bands is given in explanation.

Explanation:

The electromagnetic waves are differentiated into different bands based upon their wavelengths and frequencies. The names of different bands are as follows:

1. Radio Waves

2. Micro Waves

3. Infra-red

4. Visible light

5. Ultra Violet

6. X-rays

7. Gamma Rays

<u>The frequency of every region or rays increases from 1 through 7</u>. The <u>energy of rays also increase from 1 through 7</u>. Since, the wave length is inversely related to energy and frequency, thus the <u>wavelength of rays decrease from 1 through 7</u>.

A detailed information of the bands is provided in the picture attached.

3 0
3 years ago
A student tests the acidity of nitric acid (HNO3) by dissolving a sample of HNO3 in a solution of liquid methane. He then uses a
DerKrebs [107]
Sorry I didn't see this before...
Okay, I see two major problems with this student's experiment:

1) Nitric acid Won't Dissolve in Methane
Nitric acid is what's called a mineral acid. That means it is inorganic (it doesn't contain carbon) and dissolves in water.
Methane is an organic molecule (it contains carbon). It literally cannot dissolve nitric acid. Here's why:
For nitric acid (HNO3) to dissolve into a solvent, that solvent must be polar. It must have a charge to pull the positively charged Hydrogen off of the Oxygen. Methane has no charge, since its carbon and hydrogens have nearly perfect covalent bonds. Thus it cannot dissolve nitric acid. There will be no solution. That leads to the next problem:

2) He's Not actually Measuring a Solution
He's picking up the pH of the pure nitric acid. Since it didn't dissolve, what's left isn't a solution—it's like mixing oil and water. He has groups of methane and groups of nitric acid. Since methane is perfectly neutral (neither acid nor base), the electronic instrument is only picking up the extremely acidic nitric acid. There's no point to what he's doing.

Does that help?
8 0
3 years ago
Read 2 more answers
Other questions:
  • The signal to a speaker causes .5 amps of current. The signal level is increased to 2.5 amps. What is the gain, rounded to the n
    15·1 answer
  • If the diving board is 3.00 m above the water, what is the diver's speed just before she enters the water?
    14·1 answer
  • Light with wavelength 633 nm is incident on a 3.00-μm-wide slit.Part AFind the angular width of the central peak in the diffract
    8·1 answer
  • Two skaters begin at rest. Skater 1 has a smaller mass than Skater 2. After they push off each other,...
    15·2 answers
  • A ball thrown vertically is caught by the thrower after 5.1s. Find the maximum height the ball reaches.
    9·1 answer
  • On a frozen pond, a 10.3 kg sled is given a kick that imparts to it an initial speed of vo = 1.64 m/s. The coefficient of kineti
    15·1 answer
  • Which type of force is a noncontact force?​
    14·2 answers
  • what is it called when a soccer ball accelerates faster than a bowling ball when the same amount of force is applied?
    8·1 answer
  • An object travels a distance d with acceleration a over a period of time t according to the equation: d = at² After 2.3 seconds
    8·1 answer
  • Two girls are estimating each other's power. One runs up some step
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!