The displacement of the object that moved 4 meters north, then 3 meters east is 5 meters.
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What is displacement?</h3>
Displacement is change in the position of an object. It can be described as the shortest distance between the initial and final position of an object.
The displacement of the object is calculated as follows;
d² = 4² + 3²
d² = 25
d = 5 m
Thus, the displacement of the object that moved 4 meters north, then 3 meters east is 5 meters.
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Answer: We will survive
Explanation: Caring for the earth is something that we need to do to live or survive on earth because if we don't we may not survive.
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Answer:
The power of the bulb is reduced to a quarter
Explanation:
The power in an electrical circuit is
P = V I = I² R
If the dimmer cuts the current in half
I = I₀ / 2
The resistance of the light bulb after hot is little affected by small changes in the current
We substitute in the equation
P = I₂ R
P = (I₀ /2)² R
P = ¼ I₀² R
P = ¼ P₀
The power of the bulb is reduced to a quarter
Answer:
There are two significant figures in 2.200 x 10^7
A solid is the only state of matter that keeps it shape and volume when placed in different containments
