Answer:
A control should have been included in the investigation
Explanation:
It is impossible for the student to interpret a correct conclusion about his experiment, without adding a control treatment where he can really compare the differences between the variables.
Control treatment is an element of research that receives all factors, except the variable being tested. The control serves to make comparisons with the other treatments, allowing to observe the exact difference between a system where the variable was tested and the system where it was not.
In the case of the question above, it would have been necessary for the student to have placed a cart on a ramp of normal height and without sandpaper. That way he could compare the speed between this cart and the carts on the other ramps, thus having a correct result.
Jackson beck was the signature opening
Answer:
The freeway
Explanation:
Freeways are constructed far from city centers because they are majorly for fast vehicular movement at speeds which will be higher than speed allowed in the city. The construction of freeways have also resulted in the expansion of cities to the outlying areas the freeways occupy.
A courtier was to have a cool mind, an elegant/graceful voice, and proper etiquette or bearing.
From the Book of the Courtier , by Baldassare Castiglione.
Going by cultural norms, a relatively formal Northern European might come across as <u>Cold </u>to an expressive Latin American person.
<h3>How do cultural norms influence perception?</h3><h3 />
Different cultures have different cultural norms that govern how they relate with themselves and others.
An expressive Latin American person might come from a culture where being expressive is the norm so when they meet formal Northern Europeans who are less expressive, they might think the European is cold.
Find out more on cultural norms at brainly.com/question/9239982
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