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1 year ago

give an example of one living and one non-living thing that uses the force of buoyancy to function. explain how they work.

Physics

2 answers:

zaharov [31]1 year ago

4 0

Answer:

the biotic one is a human in water and they flaot because of the air in our lungs and the abiotic one is a swimming buoys are filled with foam and foam floats

Explanation:

...

Ber [7]1 year ago

4 0

Some examples are a boat sailing on the river, Iceberg floating on water, A person with a life vest floating on water, Ship floating on the ocean, Helium balloon rising in the air. The buoyant force is proportional to the density.

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A rope passes over a fixed sheave with both ends hanging straight down. The coefficient of friction between the rope and sheave

Oliga [24]

Answer:3.51

Explanation:

Given

Coefficient of Friction $\mu =0.4$

Consider a small element at an angle \theta having an angle of $d\theta$

Normal Force $=T\times \frac{d\theta }{2}+(T+dT)\cdot \frac{d\theta }{2}$

$N=T\cdot d\theta$

Friction $f=\mu \times Normal\ Reaction$

$f=\mu \cdot N$

and $T+dT-T=f=\mu Td\theta$

$dT=\mu Td\theta$

$\frac{dT}{T}=\mu d\theta$

$\int_{T_2}^{T_1}\frac{dT}{T}=\int_{0}^{\pi }\mu d\theta$

$\frac{T_2}{T_1}=e^{\mu \pi}$

$\frac{T_2}{T_1}=e^{0.4\times \pi }$

$\frac{T_2}{T_1}==e^{1.256}$

$\frac{T_2}{T_1}=3.51$

7 0

3 years ago

After a great many contacts with the charged ball, how is the charge on the rod arranged (when the charged ball is far away)?

faust18 [17]

Answer: Option (b) is the correct answer.

Explanation:

Since, there is a negative charge present on the ball and a positive charge present on the rod. So, when the negatively charged metal ball will come in contact with the rod then positive charges from rod get conducted towards the metal ball.

Hence, the rod gets neutralized. But towards the metal ball there is a continuous supply of negative charges. Therefore, after the neutralization of positive charge from the rod there will be flow of negative charges from the metal ball towards the rod.

Thus, we can conclude that negative charge spread evenly on both ends.

8 0

3 years ago

Explain the process of refraction of light

brilliants [131]

The process of refraction of light occurs when light rays bends when travelling between media of different densities.

What is refraction of light?

Refraction of light is the bending of light rays or the change in the direction of light rays as it travels between media of different densities.

Light waves travel faster in media of less density than media of more density.

The change in density of the media makes light waves to be bend towards or away from the normal.

For example, when light travels from less dense air to more dense water, the light rays are bent towards the normal. However, when light rays travel from water to air, the light rays are refracted away from the normal.

In conclusion, refraction of light waves occur when light crosses the boundary of media of different densities.

Learn more about refraction of light at: brainly.com/question/27932095

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4 0

1 year ago

Calculate the average distances the car and the washer traveled from the top of the track. Record the average in Table A of your

Romashka-Z-Leto [24]

The answer for both is 247 cm

7 0

3 years ago

Read 2 more answers

What is the acceleration of a boy on a skateboard if the net force on the boy is 15 N? The total mass of the boy and the skatebo

Stels [109]

   Force = (mass) x (acceleration)

If the full 15N is pointing parallel to the ground,
then

   15 N = (58 kg) x (acceleration).

Divide each side
by 58 kg: Acceleration = 15 N / 58 kg

   = (15 kg-m/s²) / (58 kg)

   = (15/58) (kg-m/kg-s²)

   = 0.26 m/s² .

7 0

3 years ago

Read 2 more answers