Calculating Heights and Acceleration: A Physics Question

In summary, the conversation involves a request for help with two questions. The first question involves finding the height of a flowerpot that is thrown up and down a window in a total time of 1.0 s. The second question involves calculating the acceleration needed for a runner to complete a 10-km run in 30.0 min, given that after 27.0 min there is still 1100 m left to go. The answer to the second question has already been provided, and the request is for assistance with the first question.
  • #1
Matthew
7
0
Hey can someone help me out with one or both of these questions?

1. A dog sees a flowerpot sail up and then back down a window (height of window is 1.77m). If the total time the pot is in sight for 1.0 s, find the height above the top of the window to which the pot rises.


2. A runner hopes to complete a 10-km run in 30.0 min. After exactly 27.0 min there is still 1100 m to go. The runner must then accelerate at 0.20 m/s^2 for how many seconds in order to exactly achieve his desired time?

Thanks in advance.
 
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  • #2
n/m I got the answer to number 2. All I need now is question 1.
 
  • #3
See my post to your question which appears in the "homework help zone."
 

1. What is the difference between classical and quantum physics?

Classical physics describes the behavior of macroscopic objects, while quantum physics describes the behavior of subatomic particles. Classical physics follows the laws of motion and gravity, while quantum physics follows the principles of uncertainty and superposition.

2. What is the relationship between energy and mass in Einstein's famous equation E=mc^2?

E=mc^2 states that energy (E) and mass (m) are equivalent and can be converted into one another. The speed of light (c) is the conversion factor between the two. This means that a small amount of mass can produce a large amount of energy.

3. How does the concept of time change in the theory of relativity?

In the theory of relativity, time is relative and can be perceived differently by different observers. The theory states that time moves slower for objects moving at high speeds or in the presence of strong gravitational forces. This is known as time dilation.

4. What is the role of mathematics in understanding physics?

Mathematics is the language of physics and is used to describe and explain the relationships between physical quantities. It allows scientists to make predictions and test theories through mathematical equations and models.

5. How does the uncertainty principle affect our understanding of the behavior of particles?

The uncertainty principle, proposed by Werner Heisenberg, states that it is impossible to know both the position and momentum of a particle simultaneously. This means that there will always be a degree of uncertainty in our measurements and understanding of the behavior of particles.

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