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.
The means did Californians take to apply for statehood is connected for statehood in March 1850 and conceded in September. The historical backdrop of California be distinctive if the Gold Rush had not happened is the populace would not have developed as quickly but rather that California's atmosphere assets still would have pulled in pioneers.
This is the kind of concept a utilitarian would agree on. If the result is positive for a large group of people, we should seriously consider doing it.
However, I would like to comment on this concept. In my opinion (and that's what you're asking for) there are situations in which the ends don't justify the means. You can e.g. think about mass-bombings to fight against terrorism. However, the possibility exists that innocent people will be hit, and will die. Therefore, the end don't always justify the means (in my opinion).
Answer:
It's already known that males' upper bodies, on average, have 75% more muscle mass and 90% more strength than females'.
