A researcher is trying to determine whether a new painkilling medicine is effective in reducing headaches. Twenty adult participants sit in a noisy environment for 30 minutes and then rate the severity of their headaches on a scale from 0 (none) to 5 (intense). Group M (the medicine group) receives a normal dose of the medicine. Group C (the control group) rests quietly. After 20 minutes, all participants again complete the headache rating scale. The statistically significant differences in headache severity on the posttest appear in the graph below.
Which of the following statements is supported by the results of this experiment?

Answer:

women with less education experience domestic violence at higher rates than women who have achieved a higher level of education. a victim of domestic violence is greater for those with less than a high school or college education

Explanation:

Most research concerning risk factors has indicated that lack of education is a risk factor for domestic violence. ... It has been noted that women with less education experience domestic violence at higher rates than women who have achieved a higher level of education.

...of strict social stratification...

Answer:

mass of sample, M = 1.2359g

mass of CO2, mCO2 = 2.241g

mass of H, mH = 0.0648g

Since the compound is an organic compound,

when organic cpd is combusted it releases CO2 and H2O and NO2.

i) Mass of C, mC = unknown

CO2 molar mass, MCO2 = 44g/mol

C molar mass, MC = 12g/mol

mC = mCO2 × MC

MCO2

mC = 2.241g × 12g of C

44g of CO2

mC = 0.61g of C

C% = 49.36%

ii) mass percent of N = 28.84% of N

mass of N, mN = unknown

NO2 molar mass, MNO2 = 46g/mol

N molar mass, MN = 14g/mol

mN% = mN

M

where, M is mass of the sample.

mN = mN% × M

mN = 28.84% × 1.2359g

mN = 0.356g

iii) mass of O, mO = unknown

mass of sample = mC + mN + mO + mH

1.2359g = 0.61g + 0.356g + mO + 0.0648g

mO = 1.2359g - 1.0308g

mO = 0.2051g

O% = 16.56%

H% = 5.24%

iv) Empirical formula,

Element | C | H | N | O |

% |49.36%|5.24%|28.84%|16.56% |

A. M| 12 | 2 | 14 | 16 |

|49.36/12| 5.24/2 | 28.84/14 | 16.56/1|

n= |C= 4.1 | H= 2.6 |N= 2.1 |O= 1|

A.R |C=4.1|H=2.6|N=2.1|O=1|

Simplest | 4 | 3 | 2 | 1|

ratio

C4H3N20 is the empirical formula.

n = number of moles and at A. R is atomic ratio and I divided by smallest number of moles.

A. M = atomic mass.

Answer:

x=52.22m

Explanation:

Answer: Facilitated the transmission of disease

Explanation:

For example The Mongols were all about expanding. When they were taking over other empires and civilizations they were spreading the fleas that harbored the disease.

Answer:

yes they are I studied for two whole days like non stop its stressful

Answer:

A. The creditor would place a lien on the borrower's property.

Explanation:

Answer:

A

Explanation:

Because it helps us understand

To provide detailed descriptions of the instruments used at the Maragha and Tabriz observatories. Therefore option A is correct.

The passage primarily focuses on describing the various instruments utilized in the Maragha and Tabriz observatories during the Ilkhanid period.

The author discusses the massive astrolabe, the azimuth quadrant, and the equatorial ring, providing detailed information about their construction and usage in astronomical observations.

While the passage may touch upon the achievements of Ilkhanid scientists, it does so in the context of showcasing the precision and innovation of the instruments.

The purpose of the passage is not to evaluate the importance of the discoveries or criticize Ghazan but rather to offer insights into the advanced astronomical tools developed during that historical era.

Therefore option A is correct.

Know more about astronomical observations:

https://brainly.com/question/32394164

#SPJ3

Answer:

C is the correct option.

Explanation:

Mass remains the same on Moon as it was on Earth but the weight differs on Moon because of gravity is less on the Moon than on Earth.

Answer:I am sorry but what are you asking

Explanation

…

Answer:

Accountancy is the rehearse of recording, classifying, and describing and recording of transactions for a business.

Explanation:

Answer:

You didn't give any countries.

Explanation:

Answer:

Tools to use in space:

•Earth-based Observations

•Airborne and Orbital Telescapes

•Probes and Fly-by Spacecraft

•Orbiters

•Landers

•Rovers

•Sample Return

Answer:

there not much time for the standard algorithm use arrows to calculate the partial products in the algorithm

Answer:

India is set to surpass China as the world’s most populous country by 2027, according to recent United Nations projections. The country now has 1.37 billion people — second only to China’s 1.4 billion — and is expected to add another 230 million by 2050, many of whom will be among the world’s poorest.

Prime Minister Narendra Modi may have had those facts in mind earlier this year when he called on Indians to have small families. Yet those alarming statistics hide a more complex reality, and some positive trends, experts say.

As in much of the rest of the world, India’s growth rate has been slowing for the past few decades, a decline attributed to increasing alleviation of poverty; rising education levels, especially among women; and growing urbanization. Most Indian states are expected to hit replacement fertility levels of 2.1 children per woman by 2021. Fertility rate has already declined to an average of 2.2 in 2017, according to a government survey of 22 major states, while urban fertility has already fallen below replacement level, to 1.7 children per woman. (The replacement fertility level refers to the number of children born per woman so that one generation exactly replaces the preceding one.)

Still, nine of those states have fertility rates above replacement levels, including five of the poorest. And experts say that India still has a large unmet need for modern contraceptive methods and relies too heavily on sterilizing women. The United Nations estimates that more than 10 million Indian women a year have unintended pregnancies.

According to current estimates, India’s population will peak in the early 2060s at 1.7 billion, putting additional pressure on the environment and natural resources and boosting greenhouse gas emissions —though the average Indian generates a fraction of the planet-warming emissions produced by the average American or European. Most of India’s population increase by mid-century will be due to demographic momentum, meaning that even as fertility rates fall below replacement levels, the large numbers of young people will continue to boost the country’s population, says P. Arokiasamy, head of the Department of Development Studies at the Indian Institute of Population Sciences in Mumbai.

Explanation:

Explanation:

POVERTY

While billions enjoy an affluent style, more than a tenth of the world’s population live in extreme poverty today. Poverty is not a consequence of limited global resources, but political and economic injustice. However, the poorest people are almost always at greatest risk from environmental damage, climate change and competition for resources. The effects of unsustainable population hit the poorest first, and hardest.