Answers:
a)
b)
c)
Explanation:
A unit vector is a vector whose magnitude (length) is equal to 1. This kind of vector is identified as and the way to calculate is as follows:
Where:
is the vector
is the magnitude of the vector
Having this information clarified, let's begin with the answers:
a) Force Vector
Magnitude of :
<u />
<u>Unit vector:</u>
b) Displacement Vector
Magnitude of :
<u />
<u>Unit vector:</u>
c) Velocity Vector
Magnitude of :
<u />
<u>Unit vector:</u>
<h2>
Answer: Light reflects when it hits a surface.</h2>
Explanation:
It is now clear that light behaves as a wave and as a particle. It should be noted that the first to propose the <u>corpuscular theory </u>of light was <u>Issac Newton</u>, while the <u>wave theory</u> was initially proposed by <u>Christian Huygens</u>, who was contemporaneous with Newton.
Now, focusing on the corpuscular theory, <u>Newton proposed that light is composed of tiny massless particles, traveling in a straight line and at high speed.</u> In addition, he used the reflection phenomenon of the of light to show that it behaved like particles that when hitting a mirror were reflected by a perfectly elastic collision.
Answer:
<em>The equivalent resistance of the combination is R/100</em>
Explanation:
<u>Parallel Connection of Resistances</u>
If resistances R1, R2, R3,...., Rn are connected in parallel, the equivalent resistance is calculated as follows:
The electric resistance of a wire is directly proportional to its length. If a wire of resistance R is cut into 10 equal parts, then each part has a resistance of R/10.
It's known the 10 parts or resistance R/10 were connected in parallel, thus the electric resistance is:
Note the sum consists of 10 equal terms. Operating on each term:
The sum of 10 identical fractions yields 10 times each fraction:
Solving for Re needs to take the reciprocal of both sides of the equation:
The equivalent resistance of the combination is R/100
Answer:
2 charges of electron (2C)
Explanation:
I = Q/t
2 = Q/1
Q = 2×1= 2C
Q = 2 charge of electron