Which of the following on-line research strategies raises the most concerns regarding the ethical principle of respecting the autonomy of research subjects and the corresponding federal regulations requiring informed consent?
Solved
Show answers
More tips
Answers on questions: Physics
- P Physics Can someone please help me out?...
- M Mathematics Evaluate the following expression. 3^-2...
- C Chemistry Ajar is tightly sealed at 22°c and 772 torr what is the pressure inside a jar after its been heated to 178°c...
- M Mathematics The number of accidents that a person has in a given year is a poisson random variable with mean λ. however, we may suppose that the rate λ depends on the person or portion of the...
Ответ:
Friction is an everyday force that is created by two surfaces interacting. When these surfaces slide against eachother, this interaction increases the thermal energy of the two surfaces (the temperature goes up). The coefficient of friction is found to be strongly dependent on temperature and decreases continuously from 0.78 to 0.46 between 24° C and 450° C