Answer:
It says skilled labor, so that would include men that have the talent or skills to craft boats and ships. So I think the answer would be just men
Explanation:
Answer:
Control
Explanation:
In a study of whether a drug might help reduce depression, research participants were assigned to take the drug or a placebo. Those who took the placebo were in the control condition.
In an experiment, the control group are not given the treatment material (drugs in this case). This is to have a basis for comparison of results of the study.
A placebo drug is manufactured not to have any treatment effect on the subjects.
<span>Critics believe that bipolar disorder has become a catch-all diagnosis for children who display uncontrollable rage. DSM-5 addressed this concern by: creating a new disorder called disruptive mood dysregulation. A child is openly hostile toward her parents. She argues with them constantly and will not do anything they say.</span><span>
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Answer: PE = 800j, KE = 800J
Explanation:
To calculate the potential energy, we use the formula
Potential Energy = Mgh
M = 20kg, g = 10m/sˆ2 , h = 4m
=20 × 10 × 4
=800J
At the maximum height S = 4 and the initial velocity u = 0 The acceleration g = 10m/sˆ2
Using the third equation of motion
vˆ2 = uˆ2 + 2as
= 0ˆ2 + 2 × 10 × 4
vˆ2 = 80
Kinetic Energy (KE) is given by
KE = ½ mvˆ2
= ½ × 20 × 80
=800J
