<h3>
Answer:</h3>
Velocity is 1 m/s
<h3>
Explanation:</h3>
<u>We are given;</u>
- Mass of the kiddy train is 1000 kg
- Radius of the curve is 5.0 m
- Centripetal force is 2000 N
We are required to determine the maximum speed of the train.
- Centripetal force refers to the force experienced by an object in a circular motion towards the center of a circular path.
- It is calculated by the formula;
- , where m is the mass, v is the velocity and r is the radius of the circular path.
- Therefore, using the formula we can find the maximum speed.
Therefore, the maximum speed of the train is 1 m/s
Answer:
1.33 Å
Explanation:
Given that the edge length , a of the KCl which forms the FCC lattice = 6.28 Å
Also,
For the FCC lattice in which the anion-cation contact along the cell edge , the ratio of the radius of the cation to that of anion is 0.731.
Thus,
.................1
Also, the sum of the radius of the cation and the anion in FCC is equal to half of the edge length.
Thus,
...................2
Given that:
To find,
Using 1 and 2 , we get:
<u>Size of the potassium ion = 1.33 Å</u>
Answer : Option C) Mammalia
Explanation : The most specific classification that puts humans in the same category of yapok is mammalia. As humans are also mammals which feeds on their young ones with milk, yapok also does the same. This characteristics makes them similar.
As from the definition of mammal, it is any of a class (Mammalia) which has warm-blood mostly higher vertebrates like placentals, marsupials, or monotremes which are seen to nourish their young with milk secreted by mammary glands, and they have the skin which is usually more or less covered with hair, and it also include humans.
The desirable soil pH for corn ranges from 5.8 to 7.0.
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