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3 years ago

Use correct alternative to complete the indirect speech sentence

Physics

1 answer:

alexandr1967 [171]3 years ago

3 0

Answer:

where a picture

Explanation:

a saan Ang picture

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Who was the last person to step on the moon?

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Eugene Cernan was not the last, but he was the most recent.

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3 years ago

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Sayid made a chart listing data of two colliding objects.

Artemon [7]

Answer:

velocity of combined objects is 6 m/s

Explanation:

As per law of conservation of momentum

total momentum before collision = total momentum after collision

since the two objects sticks together after collision so we will have

$m_1v_{1i} + m_2v_{2i} = (m_1 + m_2) v$

Now plug in all values in it

$300(10) + 100(-6) = (300 + 100) v$

$3000 - 600 = 400(v)$

$2400 = 400 v$

$v = 6 m/s$

so the missing value in the table is velocity which is 6 m/s

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3 years ago

Two unknown resistors are connected together. When they are connected in series their equivalent resistance is 15 Ω. When they a

DochEvi [55]

Explanation:

Let x and y are two unknown resistors. When they are connected in series their equivalent resistance is 15 Ω. When they are connected in parallel, their equivalent resistance is 3.3 Ω.

For series combination,

$x+y=15$ ......(1)

For parallel combination,

$\dfrac{1}{x}+\dfrac{1}{y}=3.3$ ....(2)

We need to find the resistances of these resistors. Solving equation (1) and (2) we get :

x = 0.29 and y = 14.7

Hence, the resistances of these resistors are 0.29 ohms and 14.7 ohms.

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3 years ago

X-rays are used to take pictures of your bones. UV rays just burn your skin. Why do you think x-rays can go through skin and UV

Elena L [17]

Answer:

yes x rays are like light rays the difference is that they v

can oass through stuffs

skin and fats doesn't block more of the x rays

Explanation:

why uv cannot go through it us dangerous causing skin disease and cancer,skin itchness and redness and ut is cumulative

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These plans are an accompaniment to mechanical lifting devices in reducing on-the-job injuries. they address specific patient ne

lilavasa [31]

For the answer to the question, ergonomics<span> is the science of fitting the job to the worker. When there is a mismatch between the physical requirements of the job and the physical capacity of the worker, work-related musculoskeletal disorders (MSDs) can result. Ergonomics is the practice of designing equipment and work tasks to conform to the capability of the worker, it provides a means for adjusting the work environment and work practices to prevent injuries before they occur.</span>

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3 years ago

Use correct alternative to complete the indirect speech sentence​

Use correct alternative to complete the indirect speech sentence