Answer:
The correct option is;
D) Observational study
Explanation:
In an observational study, the researcher observes, notes and record the an occurrence of events which are due to the existence of a condition, test, risk factor, such that the experimental units are apparently out of the control of the researcher, or there are no researcher intervention in the study, due to either physical constraint or laid down ethics.
In the question, the researcher observes to determine the the number of people that run a light through pre recorded traffic video providing a physical restraint which makes it an observational study.
<span>The daily driving limit for time spent behind the wheel should be no more than Six to eight hours.
Passed this point, both your mind and your muscles will be exhausted and your response time will be way slower than normal, which will increase the risk of collision on the road.</span>
Answer:
The angular velocity is the rotation speed, which is the angle of rotation
of the windmill per second, which is 2·π radians.
Explanation:
It aims to convince the reader to accept the writers point of view on a topic
Through the actions they take and the tone of their voice.