Reference no: EM13722213
Question 1: An object, which is initially at rest on a frictionless horizontal surface, is acted upon by four constant forces. F1 is 28.6 N acting due East, F2 is 32.8 N acting due North, F3 is 39.2 N acting due west, and F4 is 20.7 N acting due south.
a) How much total work is done on the object in 3.33 seconds, if it has a mass of 14.0 kg?
b) Which type of energy is changing for the object while the above work is being done?
c) How fast does the object end up moving at the end of the 3.33 seconds?
Question 2: A 20.0-g object is placed against the free end of a spring (with spring constant k equal to 25.0 N/m) that is compressed 10.0 cm. Once released the object slides 1.25 m across the tabletop and eventually lands 0.96 m from the edge of the table on the floor, as shown in the figure. Calculate the coefficient of friction between the table and the object. The sliding distance includes the compression of the spring and the tabletop is 1.00 m above the floor level.
Question 3: A block of mass m = 3.65 kg slides along a horizontal table with speed vo = 7.00 m/s. At x = 0 it hits a spring with spring constant k = 43.00 N/m and it also begins to experience a friction force. The coefficient of friction is given by p = 0.250. How far has the spring compressed by the time the block first momentarily comes to rest?
Question 4: A single 218Th nucleus, initially at rest, emits an alpha particle as it decays into a 214Ra nucleus. There are no other decay products, and the kinetic energy of the alpha particle is measured to be 1.549 x 10-12 J.
a) What is the total amount of nuclear potential energy, in joules, that was released in this process?
b) What is the difference between the original mass of the 218Th nucleus and the total mass of the fragments (214Ra and alpha particle) after the decay?
|
Write a well-organized and well-supported essay
: Write a well-organized and well-supported essay with an original thesis. The essay must include no less than SIX citations from these readings and/or video.
|
|
Write linear programming project
: Solve the problem using QM for Windows. Paste image of Linear Programming Results window and Solution List window here. What combination of A and B will maximize contribution, and what is the maximum possible contribution?
|
|
Discuss the role of technology in the productivity growth
: Discuss the role of technology in the productivity growth - Why should technology be considered as a strategic resource?
|
|
Important recent changes in remote or external environment
: In a 3- to 4-page paper, briefly analyze two important recent changes in the remote or external environment of U.S. business in the following areas. You should provide two recent changes foreach category:
|
|
Calculate how much total work is done on the object
: An object, which is initially at rest on a frictionless horizontal surface, is acted upon by four constant forces. How much total work is done on the object in 3.33 seconds, if it has a mass of 14.0 kg
|
|
Useful for understanding day-to-day interactions
: Question 1: What is dramaturgy and why is it useful for understanding day-to-day interactions? Question 2: Provide an example of when you have used or witnessed dramaturgy in a social situation.
|
|
Discuss causes of conflict in project evaluation measures
: What is the initial outlay that should be included in any evaluation of the proposed purchase of the new machine and what are the incremental cash flows for the 5 years of operation of the proposed new machine - determine the most appropriate measure..
|
|
Comment on the types of technology
: Comment on the types of technology, the pace of technological advancement, and the factors that have affected the pace of organizational change during this time.
|
|
Encounter ethical dilemmas
: Businesses often encounter ethical dilemmas. Depending on the industry, there may be consequences to business behavior that ignores ethical standards.
|