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
adelina 88 [10]
3 years ago
5

What are the energy transformations taking place in your alarm clock

Chemistry
1 answer:
kogti [31]3 years ago
5 0

Answer:

Explanation:

The clock now has potential energy. When the alarm rings, the potential energy is converted into kinetic energy and sound energy.

Alarm clock runs due to the electrical energy. Due to the electric current, the electric motor rotates the blade. It means that the electrical energy is converted into mechanical energy.

The mechanical energy finally generates vibrations which cause sound.    

Thus, energy transformation which takes place in alarm clock will follow the order-

Electrical to mechanical to sound.

You might be interested in
What is the total distance covered if you walk 5 meters to the north 5 meter east 5 meters south
mihalych1998 [28]

0! because you walked back in forth in diferent direcions

8 0
3 years ago
the chemical compound C2F4 is used to make PTEE (Teflon). How manyC2F4 molecules are in 485 kilograms of this material?
monitta

Answer:

molecules=2.92x10^{27}moleculesC_2F_4

Explanation:

Hello,

In this case, we use the Avogadro's number to compute the molecules of C2F4 whose molar mass is 100 g/mol contained in a 485-kg sample as shown below:

molecules=485kgC_2F_4*\frac{1000gC_2F_4}{1kgC_2F_4} *\frac{1molC_2F_4}{100gC_2F_4}*\frac{6.022x10^{23}molecules C_2F_4}{1molC_2F_4}  \\\\molecules=2.92x10^{27}moleculesC_2F_4

Best regards,

5 0
3 years ago
How much heat is absorbed in the complete reaction of 3.00 grams of SiO2 with excess carbon in the reaction SiO2(g) + 3C(s) → Si
defon

Answer:

31.24 kJ

Explanation:

  • SiO₂(g) + 3C(s) → SiC(s) + 2CO(g)        ΔH° = 624.7 kJ/mol

First we <u>convert 3.00 grams of SiO₂ to moles</u>, using its <em>molar mass</em>:

  • 3.00 g SiO₂ ÷ 60.08 g/mol = 0.05 mol

Now we <u>calculate the heat absorbed</u>, using the <em>given ΔH°</em>:

If the complete reaction of 1 mol of SiO₂ absorbs 624.7 kJ, then with 0.05 mol:

  • 0.05 mol * 624.7 kJ/mol = 31.24 kJ of heat would be absorbed.
6 0
2 years ago
Name 5 metals used to make the penny over the years.
Irina18 [472]
These 5 metals are: zinc,copper,tin,bronze,nickel
6 0
3 years ago
When ash, cinders, and bombs build up in a steep pile around a volcano’s vent, the result is a
Verdich [7]
Im pretty sure a cinder-cone volcano 
8 0
2 years ago
Other questions:
  • Which is TRUE of the products in this synthesis reaction?
    15·2 answers
  • What is meant by saying that latent heat of fusion of ice is 3.34*10^5 j/kg?
    5·1 answer
  • Should someone who lives on the sixth floor of an apartment building be concerned about radon in his or her apartment? Why or wh
    11·1 answer
  • What is denser kerosene, fuel oil, or butane
    12·2 answers
  • Which of the following is an example of an environmental problem caused by chemicals?
    15·1 answer
  • To conclude through reasoning from something known or assumed is to ___.
    10·2 answers
  • If you have 3.0 liters of an unknown gas, at standard temperature and pressure conditions, then you can calculate what about tha
    6·2 answers
  • What type of energy does water gain as it sits in the sun?
    6·1 answer
  • In which group would the atom be lobe along based on its valence electrons on the periodic table ​
    7·1 answer
  • The heart has 2 chambers: The UPPER CHAMBERS are called the ______________ and the LOWER CHAMBERS are called the _______________
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!