A small 23 kilogram canoe is floating downriver at a speed of 3 m/s. What is the canoe's kinetic energy?
1 answer:
Kinetic energy is defined as the energy the object possess due to its motion. It is the work that accelerates a given body from rest to motion.
Given:
The mass of the canoe is 23 kilogram
The velocity of the canoe is 3 m/s
The kinetic energy can be given by the formula:
KE =
Substituting the given values in the kinetic energy equation
KE =
KE= 11.5 * 9 kg.m^2/s^2
k = 103.5 J
Therefore the kinetic energy of the canoe is 103.5 Joules.
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Explanation:
Ethanol can be oxidized to ethanal or acetaldehyde which is further oxidized to acid that is acetic acid.
→
[oxidation by loss of hydrogen]
- An oxidizing agent potassium dichromate(VI) solution is used to remove the hydrogen from the ethanol.
- An oxidizing agent used along with dilute sulphuric acid for acidification.
Acetaldehyde can also be reduced back to ethanol again by adding hydrogen to it by using a reducing agent that is sodium tetrahydro borate, NaBH4.
- The oxidation of aldehydes to carboxylic acids can be done by the two-step process.
- In the first step, one molecule of water is added in the presence of a catalyst that is acidic.
- There is a generation of a hydrate. (geminal 1,1-diol).
→
[reduction by the gain of electrons]
Here, the oxidizing agent used is in the presence of acetone.