Answer: The normal force at the top is 0.64N
Explanation:
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The faster the particles are moving, the more energy they have. Temperature is the average amount of energy of motion of each particle of a substance. That is, temperature is a measure of how hot or cold a substance is. In contrast, the total energy of motion in the particles of a substance is called thermal energy.
Answer:
<em> I can't see the picture</em>
Explanation:
The Greeks thought that the sun was the center of the Univesre for plantets like earth to observe it !!!
Using the formula for permutation, there are 5040 ways that 7 objects are taken 1 at a time.
<h3>What is permutation?</h3>
The permutation of objects refers to the number of ways that an object can be selected from a number of objects.
Given that;
nPr = n!/(n - r)!
Hence;
7P1 = 7!/(7 - 1)!
7P1 = 7 * 6 !/6!
7P1 = 7 * 6 * 5 * 4 * 3 * 2 *1
7P1 = 5040
Learn more about permutation: brainly.com/question/1216161