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
Yakvenalex [24]
3 years ago
8

Help please someone

Chemistry
1 answer:
Ludmilka [50]3 years ago
6 0

<u>Examples of energy:</u> Nuclear, Fossil Fuels, Solar, Wind, Hydroelectric, Geothermal, Kinetic, Mechanical, Potential, and Chemical.

<u>Non-examples:</u> love, atoms, hatred, air, matter, ideas, socket, and batteries.

You might be interested in
Which of the following is not a type of mechanical wave?
Otrada [13]
Concave is not a type of mechanical wave because it doesn’t need a medium for propagation.
3 0
3 years ago
Read 2 more answers
A battery changes chemical energy into _____.
Sophie [7]
It turns chemical into electricity 
5 0
3 years ago
Read 2 more answers
In compliance with conservation of energy, Einstein explained that in the photoelectric effect, the energy of a photon (hv) abso
3241004551 [841]

Answer:

 a) 1.866 × 10 ⁻¹⁹ J      b)   3.685 × 10⁻¹⁹ J

Explanation:

the constants involved are

h ( Planck constant) = 6.626 × 10⁻³⁴ m² kg/s

Me of electron = 9.109 × 10 ⁻³¹ kg

speed of light = 3.0 × 10 ⁸ m/s

a) the Ek ( kinetic energy of the dislodged electron) = 0.5 mu²

Ek = 0.5 × 9.109 × 10⁻³¹ × ( 6.40 × 10⁵ )² = 1.866 × 10 ⁻¹⁹ J

b) Φ ( minimum energy needed to dislodge the electron ) can be calculated by this formula

hv =   Φ + Ek

where Ek = 1.866 × 10 ⁻¹⁹ J

v ( threshold frequency ) = c / λ where c is the speed of light and λ is the wavelength of light = 358.1 nm = 3.581 × 10⁻⁷ m

v = ( 3.0 × 10 ⁸ m/s ) / (3.581 × 10⁻⁷ m ) = 8.378 × 10¹⁴ s⁻¹

hv = 6.626 × 10⁻³⁴ m² kg/s ×  8.378 × 10¹⁴ s⁻¹ = 5.551 × 10⁻¹⁹ J

5.551 × 10⁻¹⁹ J = 1.866 × 10 ⁻¹⁹ J + Φ

Φ = 5.551 × 10⁻¹⁹ J - 1.866 × 10 ⁻¹⁹ J = 3.685 × 10⁻¹⁹ J

7 0
3 years ago
9.11 x 10^3 in standard notation?
Irina18 [472]

Answer:

the right answer is 9110

3 0
3 years ago
Read 2 more answers
Most elements are ____________. The _____________ elements on the left of the stair-step line on the ______________ of Elements
Vlada [557]

Answer:

metals, 88 , periodic table , luster , heat, electricity , thin, right, opposite , appearance , luster  , malleable , ductile, opposite , shiny, moderately

Explanation:

metals, 88 , periodic table , luster , heat, electricity , thin, right, opposite , appearance , luster  , malleable , ductile, opposite , shiny, moderately Is the answer.

(Hope this helps can I pls have brainlist (crown)☺️)

4 0
2 years ago
Other questions:
  • What is another name for the molecular orbital theory of bonding in metals
    14·2 answers
  • What scale do we use to measure how acid or alkali something is
    7·1 answer
  • Draw a mechanism for the reaction of methylamine with 2-methylpropanoic acid. Draw any necessary curved arrows. Show the product
    9·1 answer
  • What is the oxidation state of each element in the species Mn(ClO4)3?
    5·2 answers
  • Formula for the chemical reaction of limescale
    12·1 answer
  • You have a 5-liter container with 2.00 x 1023 molecules of ammonia gas (NH3) at STP
    11·1 answer
  • If an atom has 6 protons and 7 neutrons it will have 7 electrons if it is a neutral atom.
    10·2 answers
  • Compare the arrangements of individual particles in solids, liquids, and gases?
    15·1 answer
  • Nal+ pb(SO4) 2 Pbl4 + Na2SO4 explain how to balance the chemical equation and classify its reaction type
    8·1 answer
  • Which statement correctly describes electrochemical cells?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!