Reference no: EM131215245
1. Give an example of a physical situation where a force does work. Explain why work is done in this situation.
2. Consider the following situation:
A child sits in a swing at a playground. Her father pulls her back and releases her so that she swings back and forth. The motion of the swing changes over time, and eventually the swing is at rest.
What measurable quantity determines the potential energy in this situation? When is it a maximum? When is it a minimum?
3. Consider the following situation:
A child sits in a swing at a playground. Her father pulls her back and releases her so that she swings back and forth. The motion of the swing changes over time, and eventually the swing is at rest.
What measurable quantity determines the kinetic energy in this situation? When is it a maximum? When is it a minimum?
4. When the swing is first released it has mechanical energy. When it comes to rest, it has none. If the law of Conversation of Energy says that the energy of a system stays constant, how can we explain this using the physics of energy?
5. Carlos and Cathy are standing still at the bottom of the stairs in the LTB. Both climb the stairs to the mezzanine and stop there. Assume that both students have the same mass.
In this process, did Carlos do more work than Cathy? Did Cathy do more work than Carlos? Explain.
6. Carlos and Cathy are standing still at the bottom of the stairs in the LTB. Both climb the stairs to the mezzanine and stop there. Assume that both students have the same mass.
If I told you that Cathy had a higher average power output than Carlos during this time, what would I have noticed was different if I had watched them climb the stairs?
|
Who bears the burden of the tax
: The local government is considering a proposal to implement a bicycle tax to raise government revenue. In this situation, who should be taxed to raise more revenue - suppliers or buyers? Who bears the burden of the tax
|
|
Standard deviation of the distribution
: a. On a typical Saturday, how many cars does David expect to sell? b. What is the variance of the distribution? c. What is the standard deviation of the distribution?
|
|
Can this issue be settled by reference to a dictionary
: He argues that carpenters, barbers, porters, and other groups who organize their work around a shared code of ethics should be recognized as professionals. Do you agree or disagree, and why? Can this issue be settled by reference to a dictionary?
|
|
Prepare an essay about koch brothers invesments
: Prepare an essay about Koch Brothers invesments. What are that company's financial invesments? How do they make money before and now.
|
|
How can we explain this using the physics of energy
: When the swing is first released it has mechanical energy. When it comes to rest, it has none. If the law of Conversation of Energy says that the energy of a system stays constant, how can we explain this using the physics of energy?
|
|
Eastern bay college - preparation of a report
: ISCG 6404 Web Server Management, What should be the content of the Internet/Intranet? o How should the contents be organised? o Who within the organisation will have responsibility for each type of content? o Who will be allowed access to each type o..
|
|
What are the components of the outer product
: Show that if and are independent random variables, then the matrix can be written as an outer product of two vectors. -What are the components of the outer product?
|
|
Which of these options is required or permissible
: Fourth, what are the options you see available for solving the dilemma? Fifth, which of these options is required (obligatory, all things considered) or permissible (all right)?
|
|
How much of the loss will eversafe re pay
: How much of the loss will Eversafe Re pay? What is the maximum amount of insurance that Delta can write on a single building under the reinsurance agreement? Explain your answer.
|