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4 years ago

1 example of Deionization

Physics

1 answer:

xxTIMURxx [149]4 years ago

7 0

Answer:

For example, the rain water does not have any salinity, except the small quantity due to the atmosphere, while the sea water has a very high salinity.

hope this helps you friend

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if you throw a rock straight up at a speed of 19m/s. How long goes it take the ball to reach its maximum height?

Scrat [10]

Answer:

It requires 1.9 seconds to reach maximum height.

Explanation:

As per given question,

Initial velocity (U) =19 m/s

Final velocity (V) = 0 m/s

$\text { Taking acceleration due to gravity }(a)=10 \mathrm{m} / \mathrm{s}^{2}$

Maximum height = S

Time taken is "t"

Calculating time taken to reach maximum height:

We know that time taken to reach the maximum height is calculated by using the formula V = U + at

Substitute the given values in the above equation.

Final velocity is “0” as there is no velocity at the maximum height.

$0=19+10 \times t$

$-19=10 \times t$

$\frac{-19}{10}=t$

t = 1.9 seconds.

The time taken to reach maximum height is 1.9 seconds.

Calculating maximum height:

$\text { Consider the equation } V^{2}-U^{2}=2 a S$

Solving the equation we will get the value of S

$0-19^{2}=2 \times(-10) \times \mathrm{S} .(-\text { is due to opposite of gravity) }$

-361 = -20S

Negative sign cancel both the sides.

$\mathrm{S}=\frac{361}{20}$

S = 18.05 m

Maximum height is 18.05 m .

3 0

3 years ago

I need working steps and answers

DIA [1.3K]

Explanation:

I will definitely explain you if you follow me please

6 0

3 years ago

A block of mass m slides down a frictionless track, then around the inside of a circular loop-the-loop of radius R. From what mi

Oliga [24]

Answer:

$H = \frac{5}{2}R$

Explanation:

As we know that if the block will complete the circular motion of the path then the speed at the bottom most part of the path must be equal to

$v = \sqrt{5Rg}$

now we know that

velocity at the bottom of the path is due to conversion of potential energy to kinetic energy

so we can say it is given as

$U = KE$

$mgH = \frac{1}{2}mv^2$

now we have

$mgH = \frac{1}{2}m(5Rg)$

$H = \frac{5}{2}R$

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3 years ago

Which of the following is an example of a compound machine Bicycle, Wedge, Lever, or pulley

Vitek1552 [10]

Pulley, Lever and a Bicycle are all compound machines

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3 years ago

Which vector is the sum of the vectors shown below ?

Elden [556K]

Answer:

Explanation:

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2 years ago