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ollegr [7]
3 years ago
11

If you want to make a strong battery, should you pair two metals with high electron affinities, low electron affinities, or a mi

x? Explain your answer.
Physics
1 answer:
zalisa [80]3 years ago
6 0

A mix

Explanation:

A battery is an electrochemical cell that converts chemical energy into electrical energy. The chemical reactions in a battery ensures that current is produced.

  • A battery is made up of two electrodes which are the cathode and anode.
  • The cathode is the positive electrode and the anode is the negative one.
  • These electrodes are made up of metals.
  • Electrons moves from the anode to the cathode and current flows from cathode to anode.
  • At the anode oxidation occurs because electrons are produced here.
  • It needs to have low electron affinity.
  • At the cathode where reduction occurs, the electron affinity must be high.
  • This is the driving force for the production of electricity in electrochemical cells.

Learn more:

Battery brainly.com/question/8892837

#learnwithBrainly

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What are the three longest wavelengths for standing waves on a 264- cm -long string that is fixed at both ends
miv72 [106K]

The three longest wavelengths for the standing waves on a 264-cm long string that is fixed at both ends are:

  1. 5.2 meters.
  2. 2.6 meters.
  3. 1.7meters.

Given data:

Length of the fixed string = 264cms = 2.64 meters

The wavelength for standing waves is given by:

λ = 2L/n

where,

  • λ is the wavelength
  • L is the length of the string

For n = 1,

  • λ = 2×2.6/1

= 5.2 meters

For n = 2,

  • λ = 2×2.6/2

= 2.6 meters

For n = 3,

  • λ = 2×2.6/3

= 1.7 meters

To learn more about standing waves: brainly.com/question/14151246

#SPJ4

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2 years ago
What is the correct definition of a fracture?
MA_775_DIABLO [31]

The correct definition of a fracture is break in the bone

<u>Explanation:</u>

When nay injury results in the breaking or causing any cracking in the bones of any parts then this will lead to fracture. When the injury caused is near the ligament or tissue in which the bone is connected or attached then it will lead to an avulsion fractures. Thus this will lead to the pulling of bone form the original position thereby leading more pain in the spot associated with the fracture.

Sports people are the victims of this type of fracture. Fracture may occur anywhere mostly legs,hands,ankle,hip and elbow. sometimes it may be in finger, shoulder,knee,etc. The main symptoms that are associated with fracture includes, selling, inability in moving the fractured part or pain associated when trying to move that part, Loss of the affected part's function,etc.

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If an object is moving up, is it considered to have a positive or negative velocity?
grin007 [14]

Answer:

A positive velocity

Explanation:

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