Is there supposed to be a Picture or options? If there is im sorry
Answer:
a large dance star
Explanation:
because it is bigger and heavier
The kinetic energy that the given object will have is: 10 J
<h3>Kinetic Energy Calculation</h3>
We are given;
Mass of object; m = 4 kg
Speed of object; v = 5 m/s
Now, the formula for kinetic energy is;
K.E = ½mv²
Plugging in the relevant values gives;
K.E = ½ × 4 × 5
K.E = 10 J
Read more about Kinetic energy at; brainly.com/question/22170298
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The standard error of the difference of sample means is 0.444
From the complete question, we have the following parameters
<u>Canadians</u>
- Sample size = 50
- Mean = 4.6
- Standard deviation = 2.9
<u>Americans</u>
- Sample size = 60
- Mean = 5.2
- Standard deviation = 1.3
The standard error of a sample is the quotient of the standard deviation and the square root of the sample size.
This is represented as:

The standard error of the Canadian sample is:

So, we have:

The standard error of the American sample is:

So, we have:

The standard error of the difference of sample means is then calculated as:

This gives


Take square roots

Hence, the standard error of the difference of sample means is 0.444
Read more about standard errors at:
brainly.com/question/6851971