The summary of the step you might use to carry out an investigation using scientific method include:
- Observation
- Hypothesis
- Experiment
- Conclusion
<h3>What is Scientific method?</h3>
This is defined as a systematic approach which helps to predict how several elements in the universe works.
This usually starts with observing a phenomenon and making a hypothesis. This is usually followed by conducting experiment to ascertain its authenticity before a conclusion is drawn.
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Answer:
4
Explanation:
Mechanical Advantage is given as a ratio of the force a machines gives out to the force that it receives.
Simply put, it is the ratio of output force to input force:
We are given that:
OF = 60 N
IF = 15 N
Hence, the Mechanical Advantage of the lever is:
It is a ratio so it has no unit.
I think it comes from the stores energy from the gravity
Answer: The acceleration of the object is 0.67m/s^2 west.
Explanation: Here we are given the initial velocity and final velocity as well as the time taken. Acceleration is the change in velocity per unit time, thus the equation becomes.
a=dv/t
a=vf-vi/t
a=-2.1-4.7/3.9
a= 0.66m/s^2 west
