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IrinaVladis [17]
3 years ago
12

Which spill control and confinement method is used inside structures to remove and/or disperse harmful airborne particles, vapor

s, or gases?
Physics
1 answer:
pshichka [43]3 years ago
5 0
A method that is commonly used in spill control and confinement of hazardous airborne particles is limit its dispersion. Through the procedure, the particles will not be released to its assigned container therefore contact with the people and the environment would be avoided as much as possible.
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The source of Earth's magnetic field is
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A Neglecting air resistance, a ball projected straight upward so it remains in the air for 10 seconds needs an initial speed of
ololo11 [35]

Answer:

The initial velocity is 50 m/s.

(C) is correct option.

Explanation:

Given that,

Time = 10 sec

For first half,

We need to calculate the height

Using equation of motion

v^2=u^2+2gh

h =\dfrac{v^2}{2g}....(I)

For second half,

We need to calculate the time

Using equation of motion

h =ut+\dfrac{1}{2}gt_{2}^2

h=0+\dfrac{1}{2}gt_{2}^2

t_{2}=\sqrt{\dfrac{2h}{g}}

Put the value of h from equation (I)

t_{2}=\sqrt{\dfrac{2\times v^2}{g^2}}

t_{2}=\dfrac{v}{g}

According to question,

t_{1}+t_{2}=10

t_{1}=t_{2}

Put the value of t₁ and t₂

\dfrac{v}{g}+\dfrac{v}{g}=10

\dfrac{2v}{g}=10

v=\dfrac{10\times g}{2}

Here, g = 10

The initial velocity is

v=\dfrac{10\times10}{2}

v=50\ m/s

Hence, The initial velocity is 50 m/s.

3 0
2 years ago
A commuter train travels from New York to Washington, DC, and back in 6 hours and 5 minutes. The distance between the two statio
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Answer:

The train's displacement is zero.

Explanation:

Given data,

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Therefore, the total distance the train traveled is, d' = 726 km

The displacement is defined as the change in position coordinates with respect to its original position.

If the train travels from one point and returns back to the same point after some time, there is no change in the position coordinates with respect to its original position.

Hence, the train's displacement is zero.

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Which sentence is correct?
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Answer:

pretty sure its B if it isnt im so so sorry

Explanation:

7 0
2 years ago
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