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AveGali [126]
3 years ago
14

Franc rolled a toy car down a ramp and timed how long it took for the car to reach the bottom of the ramp. After one trial, the

student doubled the height of the ramp and added sandpaper to surface of the ramp. He conducted three more trials. After reviewing the data, the student concluded the height of the ramp had no effect on the speed that the car traveled. Which is the most likely reason his conclusion is flawed? * 10 points The student misunderstood how to calculate speed A control should have been included in the investigation Too many variables were changed during the investigation More trials were needed during the investigation
Social Studies
1 answer:
Gnoma [55]3 years ago
5 0

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.

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Which of the following is an accurate comparison of Cabinet-level departments and regulatory agencies? Cabinet-Level Departments
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Answer:

A. Fifteen Cabinet departments, each with a secretary or head that serves on the president’s Cabinet

-Created and empowered by Congress to monitor particular industries and enforce unique laws.

Explanation:

Cabinet-Level Departments are those departments that handles the programs for veterans, survivors, and their kins. These veteran events are that came to be called the Cabinet-Level Department. This Department was created in 1989. This Department includes Department of War, Department of Army, Department of the Navy, etc. There are Fifteen Cabinet Departments in the US and each department holds a secretary and President.

Regulatory Agencies, on the other hands, is an agency created by Congress to function independendently. The purpose of these agencies is to set a level of quality in their specific areas. These agencies enforce their own set of laws in their specific areas.

Therefore the correct answer is the option A.

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3 years ago
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How were representatives and direct taxes apportioned among the states ?
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Answer:

a

Explanation:

3 0
3 years ago
You have been studying for weeks for a nursing school entrance exam. You love the idea of becoming a nurse, and you have been en
ozzi

Answer: Relaxed      

Explanation:

Relaxed mindset is the condition of mind in a person where calmness, peace and relaxation is present.Mind can function and think openly without any stress or tension.This helps to deal with any issue, problem solving,doing tasks etc  easily and efficiently.

According to the question test should be given with relaxed mindset so that person has calm and non-stressful mind while answering question.It will provide more clarity and ability to think openly .

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3 years ago
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zepelin [54]
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3 years ago
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