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sergij07 [2.7K]
3 years ago
6

Red, Yellow, Green, and Purple are in a physical fitness race, pulling different amounts of weights. Considering the equations f

or Newton’s second law (using force, mass, acceleration), who would MOST LIKELY win if each competitor pulls with a force of 570 N? Explain why.
• Red has 8 weights with a total mass of 200 kg.
• Yellow has 6 weights with a total mass of 100 kg.
• Green has 7 weights with a total mass of 250 kg.
• Purple has 10 weights with a total mass of 300 kg.
Physics
1 answer:
solong [7]3 years ago
4 0

Answer:

a

Explanation:

plz make me brainliest

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As the water molecules heat up they become more dense and float to the top. True or False
miss Akunina [59]

Answer: False but read why

Heated water molecules expands ( become less dense) but they do float to the top.

8 0
3 years ago
A book rests on a wooden table is an example of
kykrilka [37]

Answer:

Static friction

Explanation:

When there is contact between two surfaces and there is no movement, there is static friction. So, if we have a book that rests on a wooden table, we have an example of Static friction, where this force avoids the movement of the book.

7 0
1 year ago
2Mg+2HCI TO 2MgCI+2H2
motikmotik
2Mg + 2HCl →2MgCl + 2H₂

Balanced is:

4Mg + 4HCl → 4MgCl + 2H₂

I Hope I Helped 

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6 0
3 years ago
The human ear canal is about 2.9 cm long and can be regarded as a tube open at one end and closed at the eardrum. What is the fu
solniwko [45]

The frequency of the human ear canal is 2.92 kHz.

Explanation:

As the ear canal is like a tube with open at one end, the wavelength of sound passing through this tube will propagate 4 times its length of the tube. So wavelength of the sound wave will be equal to four times the length of the tube. Then the frequency can be easily determined by finding the ratio of velocity of sound to wavelength. As the velocity of sound is given as 339 m/s, then the wavelength of the sound wave propagating through the ear canal is  

Wavelength=4*Length of the ear canal

As length of the ear canal is given as 2.9 cm, it should be converted into meter as follows:

wavelength = 4*2.9*10^{-2} =0.116

Then the frequency is determined as

f=c/λ=339/0.116=2922 Hz=2.92 kHz.

So, the frequency of the human ear canal is 2.92 kHz.

4 0
3 years ago
Divers in acapulco, mexico, dive headfirst at 8 feet per second from the top of a cliff 87 feet above the pacific ocean. during
xxMikexx [17]
Depends on the wieght of his genitals.
8 0
3 years ago
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