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3 years ago

The movement of water is able to transport minerals and nutrients. Which statement best explains why water is able to do this?

Physics

2 answers:

satela [25.4K]3 years ago

6 0

Answer:

Explanation:

The movement of water is able to transport mineral and nutrients such as calcium potassium etc. We can take take the example of ground water as some minerals mixed in ground water, some times those minerals are beneficial and sometimes not. for example if mercury mixes in water, it not good for health whereas copper calcium and other are good when are mixed in an appropriate amount.

Marrrta [24]3 years ago

3 0

no it can't do this why because I think that it is water and it can not go any where.

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4 years ago

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3 years ago

This force can either push the block upward at a constant velocity or allow it to slide downward at a constant velocity. The mag

Dmitry [639]

Answer:

Part a)

$F = 135.7 N$

Part b)

$F = 62.5 N$

Explanation:

Part a)

If block is sliding up then net force must be zero and friction will be in opposite to the direction of motion of the block

$Fcos\theta = mg + F_f$

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so we have

$Fcos\theta = mg + \mu(Fsin\theta)$

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$F = \frac{55}{cos50 - 0.310(sin50)}$

$F = 135.7 N$

Part b)

If block is sliding down then net force must be zero and friction will be in opposite to the direction of motion of the block

$Fcos\theta = mg - F_f$

$Fsin\theta = F_n$

so we have

$Fcos\theta = mg - \mu(Fsin\theta)$

$F(cos\theta + \mu sin\theta) = mg$

$F = \frac{mg}{cos\theta + \mu sin\theta}$

$F = \frac{55}{cos50 + 0.310(sin50)}$

$F = 62.5 N$

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3 years ago

Which of the following is most likely to be an observation made by a physiologist

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4 years ago

Using Rayleigh's criterion, calculate the diameter of an earth-based telescope that gives this resolution with 700 nm light.

pogonyaev

Complete Question

Due to blurring caused by atmospheric distortion, the best resolution that can be obtained by a normal, earth-based, visible-light telescope is about 0.3 arcsecond (there are 60 arcminutes in a degree and 60 arcseconds in an arcminute).Using Rayleigh's criterion, calculate the diameter of an earth-based telescope that gives this resolution with 700 nm light

Answer:

The diameter is $D = 0.59 \ m$