The study of natural resources
The mechanical energy of an object is equivalent to the sum of its potential and kinetic energy. If the helicopter is grounded, then its mechanical energy will be 20 J. If it is in the air, then its potential energy will be calculated using:P.E = mghAnd then added to the kinetic energy to obtain mechanical energy.
Answer: Construct validity
Explanation:
Construct validity is the degree to which a test is done to measure what it claims. Construct validity defines how well the test or experiment actually measures its claims and whether the operational definition of the variable reflect the true theoretical meaning of the concept being illustrated.
The psychologist develops a questionnaire that is designed to study the variable of self-esteem and then conducts different studies to investigate the differences between people who had low scores on sled esteem and the people who had high score on self esteem. The reason for this was to get an accurate method of measuring self esteem. This means the psychologist wants to establish construct validity.
The answer is to establish a multicultural society. This is also to foster unity among nations in
the European continent. This way they
would united when it comes to issues affecting the continent and they would
help each other out when the need arises.
Answer:220
Explanation:
Given
Bottled water consumption reported to be 29 gallons per person
Considering it to be weekly
And 1 gallon is equivalent to 3.78 Liter
So 29 gallons is 109.77 Liter
1 Bottle is of 0.5 L
So 109.77 water is stored by
So 220 Bottle is used by a person in a week
