Answer:
I believe it;s the difference in pressure
Explanation:
This is caused by the diaphragm contracting and therefore expanding the thoracic cavity. This increase in volume causes a decrease in pressure.
1. Arrhythmia: a problem with the rate or rhythm of your heartbeat. Your heart may beat too fast or too slow or with an irregular rhythm. Triggers for this could be: Caffeine, Nicotine, and other stimulants.
2. Heart attack: a medical emergency that usually occurs when a blood clot blocks blood flow to the heart. This would feel like chest pain that may feel like pressure, tightness, pain, squeezing or aching. This pains spreads to the shoulder, arm, back, neck, jaw, teeth or sometimes the upper belly.
3. Coronary artery disease: a common heart condition that occurs when the major blood vessels that supply the heart struggle to send enough blood, oxygen and nutrients to the heart muscle. Major causes for this disease are: smoking, high cholesterol, high blood pressure, lack of regular exercise, diabetes, high lipoprotein, thrombosis.
Answer:
False.
Explanation:
Power may be defined as the rate of doing work with time. The S.I. unit of power is J/s or watt. The power is a scalar quantity as it has only magnitude and no direction.
The power can be calculated by the formula:
Power = work done/ time taken.
From the formula, it is clear that power is inversely proportional to the time taken by the body. Hence, if the work remains constant, power will decrease with time.
Thus, the answer is false.
Experimental research, often considered to be the “gold standard” in research designs, is one of the most rigorous of all research designs. In this design, one or more independent variables are manipulated by the researcher (as treatments), subjects are randomly assigned to different treatment levels (random assignment), and the results of the treatments on outcomes (dependent variables) are observed. The unique strength of experimental research is its internal validity (causality) due to its ability to link cause and effect through treatment manipulation, while controlling for the spurious effect of extraneous variable.
Experimental research is best suited for explanatory research (rather than for descriptive or exploratory research), where the goal of the study is to examine cause-effect relationships. It also works well for research that involves a relatively limited and well-defined set of independent variables that can either be manipulated or controlled. Experimental research can be conducted in laboratory or field settings. Laboratory experiments , conducted in laboratory (artificial) settings, tend to be high in internal validity, but this comes at the cost of low external validity (generalizability), because the artificial (laboratory) setting in which the study is conducted may not reflect the real world. Field experiments , conducted in field settings such as in a real organization, and high in both internal and external validity. But such experiments are relatively rare, because of the difficulties associated with manipulating treatments and controlling for extraneous effects in a field setting.
Experimental research can be grouped into two broad categories: true experimental designs and quasi-experimental designs. Both designs require treatment manipulation, but while true experiments also require random assignment, quasi-experiments do not. Sometimes, we also refer to non-experimental research, which is not really a research design, but an all-inclusive term that includes all types of research that do not employ treatment manipulation or random assignment, such as survey research, observational research, and correlational studies.
Answer:
a quince is a party for when a mexican girl is turning fifteen and her parents are telling her that she is finally responsible of taking care of herself. Americans celebrate it even though it is a mexican tradition and it should not be celebrated. it should only be celebrated by mexicans ONLY.
Explanation:
have a nice day!