In which one of the following circumstances could mechanical energy not possibly be conserved, even if friction
Question:
(a) A car moves up a hill, its velocity continually decreasing along the way.
(b) A car moves down a hill, its velocity continually increasing along the way.
(c) A car moves along level ground at a constant velocity.
(d) A car moves up a hill at a constant velocity.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 33% (6 reviews)
d The velocity is constant Therefore the speed is also constant ...View the full answer
Answered By
Jonas Araujo
I have recently received the degree of PhD. In Physics by the Universidade Federal do Maranhão after spending a term in Durham University, as I have been awarded a scholarship from a Brazilian mobility program. During my PhD. I have performed research mainly in Theoretical Physics and published works in distinguished Journals (check my ORCID: https://orcid.org/0000-0002-4324-1184).
During my BSc. I have been awarded a scholarship to study for a year in the University of Evansville, where I have worked in detection-analysis of photon correlations in the the Photonics Laboratory. There I was a tutor in Electromagnetism, Classical Mechanics and Calculus for most of that year (2012).
I am very dedicated, honest and a fast learner, but most of all, I value a job well done.
5.00+
1+ Reviews
10+ Question Solved
Related Book For
Question Posted:
Students also viewed these Mechanics questions
-
In which one of the following circumstances does the principle of conservation of mechanical energy apply, even though a nonconservative force acts on the moving object? (a) The nonconservative force...
-
If a car generates 18hp when traveling at a steady 88km/g, what must be the average force exerted on the car due to friction and air resistance?
-
The engine of a car with mass m supplies a constant power P to the wheels to accelerate the car. You can ignore rolling friction and air resistance. The car is initially at rest. (a) Show that the...
-
For the Somerset furniture Company described in Case Problem 10.1 in Chapter 10, determine the product lead time by developing a time line from the initiation of a purchase order to product delivery....
-
Suppose a copy machine manufacturer uses independent service operators (ISOs) to service its copiers. Recently, its machines have become more complex and difficult to service, and the manufacturer is...
-
Because salespeople also take orders, should the analysis also consider the costs of the orders they take?
-
Language study. Choose a student in grades 9 to 12 at random and ask if he or she is studying a language other than English. Here is the distribution of results: Language: Spanish French German All...
-
Success Systems' second quarter 2014 fixed budget performance report for its computer furniture operations follows. The $156,000 budgeted expenses include $108,000 in variable expenses for desks and...
-
please help 1. Compute straight-line depreciation for each year of this new machine's life. 12 points) 2. Determine expected net income for each year of this machine's life. Show your work on how you...
-
The CIO of A&D High Tech, Matt Webb, needs to determine whether the proposed online store project can be completed in time for the holiday shopping season. A new project manager, Chris Johnson, has...
-
The same force pushes in three different ways on a box moving with a velocity , as the drawings show. Rank the work done by the force in ascending order (smallest first): (a) A, B, C (b) A, C, B (c)...
-
You are moving into an apartment and take the elevator to the 6th floor. Suppose your weight is 685 N and that of your belongings is 915 N. How much work does the elevator do on you alone (without...
-
Assume that the tax rate is 21 percent. You can borrow at 8 percent before taxes. Should you lease or buy?
-
The break even point of a company is $240 000. They sell their product at a markup of 30% and have variable expenses of 9% of sales. They currently make a profit of $10 500. They plan on reducing...
-
What kind of messages are young girls and boys receiving about whether their safety in relationships is valued are by their families and communities? Do we emphasize to our children (boys and girls)...
-
Below are the transactions for Oliver Printing, Incorporated for June, the first month of operations. June 1 Obtain a loan of $ 5 6 , 0 0 0 from the bank by signing a note. June 2 Issue common stock...
-
Assume an organization must invest $ 7 0 0 , 0 0 0 in fixed costs to produce a product that sells for $ 7 5 and requires $ 4 0 in variable costs to produce one unit. What is the organization s...
-
hotel delta marriott montreal What do you think is the value and purpose for the hotel brand choosing to make CSR an important part of their overall business strategy? What two recommendations based...
-
The following problem is taken from the Theoretical Examination of the 44th annual International Chemistry Olympiad in 2012, a competition attended by four secondary school students from each of...
-
Thalina Mineral Works is one of the worlds leading producers of cultured pearls. The companys condensed statement of cash flows for the years 20182020 follows. Required Comment on Thalina Mineral...
-
Calculate the magnitude of the drag force on a missile 53 cm in diameter cruising at 250 m/s at low altitude, where the density of air is 1.2 kg/m 3 . Assume C = 0.75.
-
A bicyclist travels in a circle of radius 25.0 m at a constant speed of 9.00 m/s. The bicycle-rider mass is 85.0 kg. Calculate the magnitudes of (a) The force of friction on the bicycle from the road...
-
A 110 g hockey puck sent sliding over ice is stopped in 15 m by the frictional force on it from the ice. (a) If its initial speed is 6.0m/s, what is the magnitude of the frictional force? (b) What is...
-
Slow Roll Drum Co. is evaluating the extension of credit to a new group of customers. Although these customers will provide $198,000 in additional credit sales, 13 percent are likely to be...
-
Wendell's Donut Shoppe is investigating the purchase of a new $39,600 conut-making machine. The new machine would permit the company to reduce the amount of part-time help needed, at a cost savings...
-
1.Discuss the challenges faced with Valuing Stocks and Bonds. As part of this discussion, how will the selected item be implemented in an organization and its significance? 2. Discuss how Valuing...
Study smarter with the SolutionInn App