We would like to know the average net force. Therefore, we can calculate the acceleration using:
x = 0.5*a*t^2
v = a*t
where x=3.6m and v=185 m/s.
Therefore,
t=v/a and hence x = 0.5*a*(v/a)^2 = 0.5 * (v^2)/a
so a= (0.5*v^2)/x
Since we know the values for v and x, as written above, we can calculate a by plugging the numbers in.
The average net force will then be:
F = m*a,
where m=7.5kg.
Answer:
1000 Hz
Explanation:
<em>The frequency would be 1000 Hz.</em>
The frequency, wavelength, and speed of a wave are related by the equation:
<em>v = fλ ..................(1)</em>
where v = speed of the wave, f = frequency of the wave, and λ = wavelength of the wave.
Making f the subject of the formula:
<em>f = v/λ.........................(2)</em>
Also, speed (v) = distance/time.
From the question, distance = 900 m, time = 3.0 s
Hence, v = 900/3.0 = 300 m/s
Substitute v = 300 and λ = 0.3 into equation (2):
f = 300/0.3 = 1000 Hz
The correct answers are as follows:
1. D [CONTEXT]
The acronyms AUDIENCE stands for following:
A: Analysis
U: Understanding
D: Demographic
I: Interest
E: Enviroment
N: Needs
C: Context
E: Expectation
The acronyms is used in speech presentation to consider and analyse the audience needs so that a speaker will be able to satisfy these needs.
2. EXPECTATION. NEEDS.
The expectations and the needs of the audience are part of the things that a speaker needs to understand about his audience before presenting a speech. Expectation refers to the things that the audience expect to learn or hear from you while needs refers to the needs of the audience which must be met by the speaker.
3. CREATIVE STRATEGIES CAN HELP ENHANCE CREATIVITY DURING THE DESIGN PROCESS
Creative strategies refers to the strategies employ by designers to ensure that their designs are creative and it meets the specific goals for which they are intended. Developing a creative strategies will help a designer to carefully consider all workable plans and then choose the best one among them, thus enhancing their creativity.
4. BRAIN STORMING IS A MORE ORGANISED APPROACH TO CREATIVE DESIGN THAN IS FREE ASSOCIATION.
Brainstorming is the process by which ideas are generated by a group while free association usually involves only one person and it has to do with resolving inner conflicts and contradictions.
5. FREE ASSOCIATION
Free association is a method developed by Sigmund Freud. It is a psychoanalytical method which he used to help his patients to learn more about what they are thinking and feeling. This method bring to the fore the unconscious and the repressed thoughts of the patients.
Answer:
I think is 3 I am not sure