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3 years ago

2.What simple infection control procedure helped Dr. Ignaz Semmelweis save a number of lives in the 1800s?

Health

1 answer:

SVETLANKA909090 [29]3 years ago

5 0

By getting people to wash their hands more often.

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Which of the following BEST describes a body in equilibrium?

sukhopar [10]

$\textsf {\large{\underline { \underline {SOLUTION:-}}}}$

⇰Let O be the point of observation on the ground OX.

⇰Let A and B be the two positions of the jet.

$\bf➠Then, \angle XOA=60⁰ \: and \: \angle \: XOB=30⁰ \\ \\$

$\bf ➠Draw \: AL \perp \: OX \: and \: BM \perp \: OX \\ \\$

$\bf \:⇰ Let \: AL=BM=h \: meters. \\ \\$

$\bf \: ⇰ \: Speed \: of \: Jet = 720 \: km/hr\\$

$\bf = \huge( \small \: 720 \times \frac{5}{18} \huge) \small \: m / s\\$

$\bf = 200 \: m/s$

$\bf \:➥ Time \: taken \: to \: cover \: the \: distance \: AB=15 \: sec \\ \\$

$\bf➥ Distance \: covered =(speed×time) \\ \\$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \bf = (200 \times 15)m = 3000m \\ \\$

$\bf \therefore LM=AB=3000m \\ \\$

${ \bf \: ⇰ \: Let \: OL} = x \: \bf m \\ \\$

$\bf➥From \: right \: \triangle OLA, \: we \: have: \\$

$\bf \frac{OL}{AL} =cot \: 60⁰= \frac{1}{ \sqrt{3} } \implies \frac{x}{h} = \frac{1}{ \sqrt{3} } \\ \\$

$\bf \implies \: x = \frac{h}{ \sqrt{3} } \: \: \: \: \: \: \: ....(1) \\ \\$

$\bf \:➥ From \: right \: \triangle \: OMB,we \: have: \\$

$\bf\frac{OM}{BM} =cot30⁰= \sqrt{3} \\ \\$

$\bf \implies \: \frac{x + 3000}{h} = \sqrt{3} \\ \\$

$\bf[ \boxed{➯OM=OL+LM=OL+AB=(x+3000)m \: and \: BM=h \: m]}$

$\bf \implies \: x + 3000 = \sqrt{3} h \\$

$\bf \implies \: x = ( \sqrt{3} h - 3000) \: \: \: \: \: \: ....(2) \\$

⇰ Equating the value of x from (1) and (2),we get;

$\bf \: \sqrt{3} h - 3000 = \frac{h}{ \sqrt{3} } \\ \\$

$\implies \bf \: 3h - 3000 \sqrt{3} = h \\$

$\bf \implies \: 2h = (3000 \times \sqrt{3} ) = (3000 \times 1.762) \\$

$\bf \implies \: h = (3000 \times 0.866) = 2598 \\ \\$

$\bf \:➥ Hence \: ,the \: required \: height \: is \: \boxed{ \boxed{ \bf2598 \: m.}} \\ \\$

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3 years ago

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Using the following scenario, evaluate the relevance of the instructor's questions.

3241004551 [841]

Using the following scenario, evaluate the relevance of the instructor's questions.

Emil is nine years old. He likes singing and listening to music. His parents are considering enrolling him in an orchestra camp for 9- to twelve-year-old children.

The instructor asks many questions to assess Emil's readiness. He is concerned when he hears that Emil is still dog paddling after taking swimming lessons, but is glad to hear that Emil enjoys taking voice lessons and that he responds well when his teacher corrects his spelling.

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3 years ago

Alain’s daughter wears dresses, plays with dolls, and likes to pretend she is a princess. Alain does not think society has influ

White raven [17]

Answer:

Biological determinism.

Explanation:

Biological determinism (also known as genetic determinism, biologism, or biodeterminism) is the idea that human characteristics and behavior are exclusively determined at conception by some aspect of biology, as Alain thinks, by genes and hormones. Meaning that environmental, social, and cultural factors have no effect in a person’s life.

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3 years ago

Your family, friends, and _____ are important parts of your environment

svetoff [14.1K]

Pets or neighbors idk its either one

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The mother of a 10-year-old patient calls because she has found a tick behind her daughters knee, what should you tell her to do

elixir [45]

Answer:

below

Explanation:

take tweezers and pull it out, just make sure you get the head as well

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