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
Gemiola [76]
3 years ago
13

Define mechanical energy. Using the example of the pendulum, explain how kinetic and potential energy relate to the mechanical e

nergy at different positions.
Chemistry
1 answer:
ankoles [38]3 years ago
7 0
Mechanical energy is the sum of potential energy and kinetic energy present in the components of a mechanical system. It is the energy associated with the motion and position of an object. All energy can be expressed in Joules (including thermal <span>energy</span>
You might be interested in
What is the gasoline doing to our environment?
luda_lava [24]
Gasoline use contributes to air pollution
Gasoline is a toxic and highly flammable liquid. The vapors given off when gasoline evaporates and the substances produced when gasoline is burned (carbon monoxide, nitrogen oxides, particulate matter, and unburned hydrocarbons) contribute to air pollution. Burning gasoline also produces carbon dioxide, a greenhouse gas.
5 0
3 years ago
How can I convert percent concentration to molarity?
harina [27]
<span>Calculate the mass of 1 L of solution. Mass of solution=1000mL soln ×1.19 g soln1mL soln =1190 g soln (3 significant figures + 1 guard digit)Calculate the mass of HCl . Mass of HCl=1190g soln ×37.7g HCl100g soln =448.6 g HCl.Calculate the moles of HCl . ...Calculate the molarity of the HCl.</span>
5 0
4 years ago
An electrochemical cell is powered by the half reactions shown below.
andrezito [222]
Reduction reactions are those reactions that reduce the oxidation number of a substance. Hence, the product side of the reaction must contain excess electrons. The opposite is true for oxidation reactions. When you want to determine the potential difference expressed in volts between the cathode and anode, the equation would be: E,reduction - E,oxidation. 

To cancel out the electrons, the e- in the reactions must be in opposite sides. To do this, you reverse the equation with the negative E0, then replacing it with the opposite sign. 

Pb(s) --> Pb2+ +2e-      E0 = +0.13 V
Ag+ + e-  ---> Ag           E0 = +0.80 V

Adding up the E0's would yield an overall electric cell potential of +0.93 V.
7 0
4 years ago
Does electronegativity affect replacement reactions
Annette [7]

Answer: A single replacement reaction occurs when an elemental metal atom with a low electronegativity replaces another atom (usually a metal) in a compound. This is caused by a transfer of electrons from the less electronegative metal to the more electronegative atom.

Explanation: I hope this helps

3 0
3 years ago
When the temperature of a substance decreases to the substance's freezing point, the substance will begin to change from a _____
igor_vitrenko [27]
It changes from a liquid to a solid.
4 0
4 years ago
Other questions:
  • What happens to a glucose molecule when it loses a hydrogen atom as the result of an oxidation-reduction reaction?
    9·1 answer
  • What is the total temperature change between 3km and 7km above earth's surface
    14·1 answer
  • Every econimics desicion has
    9·1 answer
  • Hurry please
    6·2 answers
  • Please help with my chemistry! PLEASE
    13·1 answer
  • The electron configuration of a neutral elerpent is 1s 2s 2p 3s. If the electron configuration
    6·1 answer
  • How many possible orbitals are there for n = 3?
    10·1 answer
  • Identify which element is the least malleable: potassium, calcium, scandium, or titanium
    10·2 answers
  • Substance A and Substance B undergo a chemical reaction to form substance C. What type of substance is A?
    5·1 answer
  • A solid form of matter in which there is long range repeating order is called ________
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!