คลื่นกลเกิดขึ้นได้อย่างไร

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Answer 1

Answer:

Mechanical waves are oscillation of matter, they are important because they all transfer energy from one place to another. There are 2 types of mechanical waves. A transverse wave where the particles vibrate perpendicular to the direction of energy travel and a longitudinal wave where particle vibrations are parallel to the direction of the energy transfer.

I hope it helps, Regards.

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An early submersible craft for deep-sea exploration was raised and lowered by a cable from a ship. When the craft was stationary, the tension in the cable was 7000 N {\rm N}. When the craft was lowered or raised at a steady rate, the motion through the water added an 1800 N {\rm N} drag force.Part AWhat was the tension in the cable when the craft was being lowered to the seafloor?Express your answer to two significant figures and include the appropriate units.Part BWhat was the tension in the cable when the craft was being raised from the seafloor?Express your answer to two significant figures and include the appropriate units.

A woman with a genotype of Cc marries a man with a genotype of Cc. What is the probability that their offspring will have a chin with no cleft?

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This may help if you know which alleles are dominant and recessive.

Each of us weighs a tiny bit less on the ground floor of a skyscraper than we do on the top floor. One reason for this is that _____. A. the gravitational field is shielded inside the building B. the mass of the building attracts you upward slightly C. both A and B D. none of the above

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B. the mass of the building attracts you upward slightly

Do electromagnetic waves travel through a medium

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No, they actually travel through the vacuum of outer space, but it also requires the absence of a material sedium.

According to this equation, F=ma, how much force is needed to accelerate a 70-kg runner at 5m/s2?A.
350 m/s

B.
14 N

C.
350 N

D.
14 m/s

Answers

F=ma = 70*5 = 350N, therefore, 350N is needed to accelerate a 70-kg runner at 5m/s2.

Which one is having lesser ressistance. a 60w bulb or a 40w bulb?

Answers

Power dissipation = (voltage across the component)² / (resistance of the component)

Since the resistance is in the denominator of the fraction in this formula for the
quantity of power dissipated, you can see that when the supply voltage is constant,
the smaller resistance dissipates more power.

So the 60w bulb has lower resistance than the 40w bulb.

H2SO4 goes to HSO4 Did it gain or lose a proton? Is it a Bronsted-Lowery acid or base?

Answers

H2SO4 is a chemical symbol for sulfuric acid. Converting this compound to HSO4 or the hydrogen sulfate ion means that it has lost one of its protons. With this we can conclude that H2SO4 is a Bronsted-Lowry acid.

Answer:

We conclude that it is a Bronsted-Lowry acid.

Explanation:

Hello! Let's solve this!

According to Bronsted-Lowry an acid is a chemical species that is capable of yielding protons and a Bronsted-Lowry base is a chemical species capable of accepting protons.

In this case we see that sulfuric acid (H2SO4) loses a proton to become HSO4.

We conclude that it is a Bronsted-Lowry acid.

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