Answer:
t = √2y/g
Explanation:
This is a projectile launch exercise
a) The vertical velocity in the initial instants (
= 0) zero, so let's use the equation
y = t -1/2 g t²
y= - ½ g t²
t = √2y/g
b) Let's use this time and the horizontal displacement equation, because the constant horizontal velocity
x = vox t
x = v₀ₓ √2y/g
c) Speeds before touching the ground
vₓ = vox = constant
= - gt
= 0 - g √2y/g
= - √2gy
tan θ = Vy / vx
θ = tan⁻¹ (vy / vx)
θ = tan⁻¹ (√2gy / vox)
d) The projectile is higher than the cliff because it is a horizontal launch
Answer:
Explanation:
Our lunar companion rotates while it orbits Earth. It's just that the amount of time it takes the moon to complete a revolution on its axis is the same it takes to circle our planet — about 27 days. As a result, the same lunar hemisphere always faces Earth.
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.
Which gas law states that the pressure of a gas decreases when volume is increased and the temperature is unchanged?
A. The General Gas Law
B. The Law of Cubic Expansion
C. Charles' Law
D. Boyle's Law
