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.
Learn more about displacement here: brainly.com/question/2109763
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Using Placks’s constant and frequency
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Hello!</h2>
The answer is:
The buoyant force is equal to 49N.
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Why?</h2>
The buoyant force is the force that pushes upwards and object when it's submerged in water, this force is always trying to move the object to the surface of the liquid or water. We must consider that the volume of water or liquid displaced is equal to the volume of the submerged object.
We can calculate the buoyant force using the following formula:
Where,
Density is the density of the water or liquid.
Volume displaced is equal to the volume of the submerged object.
Gravity acceleration is the acceleration due to gravity.
So, from the statement we know that:
Now, substituting and calculating we have:
Hence, we have that the correct answer is:
The buoyant force is equal to 49N.
Have a nice day!
Answer:
Sound energy wave is transferred through a substance as a series of compressions.
Explanation:
Sound is caused by regular oscillating that produce regions of compression (high pressure) and rarefaction (low pressure) that move through a substance. Sound not only travels through air, it can travel through any substance, solid, liquid or gas. Whales can hear other whales across whole oceans through water, an Earthquake is low frequency sound moving through the solid Earth
A vibrating object compresses the air and sound waves move from the source, much like waves in water if you drop a stone into it. These sound waves can carry great distances depending on their loudness and frequency.
