Learning Activity 3.5 Portfolio A. When a 50.0 kg skier (initially at rest) skis down a...
Fantastic news! We've Found the answer you've been seeking!
Question:
![image text in transcribed](https://s3.amazonaws.com/si.experts.images/answers/2024/05/66435ddcd65d4_97266435ddca93cb.jpg)
Transcribed Image Text:
Learning Activity 3.5 Portfolio A. When a 50.0 kg skier (initially at rest) skis down a ramp located on Mars (where the acceleration due to gravity is 3.711 m/s) from a vertical height of 2.00 m, she attains a speed of 3.00 m/s. a) What is the skier's total mechanical energy at the top of the ramp? b) What is the skier's total mechanical energy at the bottom of the ramp? c) What is the percent efficiency of the ramp? B. What is the cost of operating a 100 W light bulb 4 hours a day for 6 days if the price of electrical energy is 5 c/kWh? C. How much power does Daniel produce if he transforms 2.4 kJ of chemical energy (in pizza that he ate that day) into kinetic energy and thermal energy in 12.5 s? Learning Activity 3.5 Portfolio A. When a 50.0 kg skier (initially at rest) skis down a ramp located on Mars (where the acceleration due to gravity is 3.711 m/s) from a vertical height of 2.00 m, she attains a speed of 3.00 m/s. a) What is the skier's total mechanical energy at the top of the ramp? b) What is the skier's total mechanical energy at the bottom of the ramp? c) What is the percent efficiency of the ramp? B. What is the cost of operating a 100 W light bulb 4 hours a day for 6 days if the price of electrical energy is 5 c/kWh? C. How much power does Daniel produce if he transforms 2.4 kJ of chemical energy (in pizza that he ate that day) into kinetic energy and thermal energy in 12.5 s?
Expert Answer:
Posted Date:
Students also viewed these physics questions
-
A. When a 50.0 kg skier (initially at rest) skis down a ramp located on Mars (where the acceleration due to gravity is 3.711 m/s2) from a vertical height of 2.00 m, she attains a speed of 3.00 m/s. -...
-
Mean return You should get a graph that looks something like the following: 20% Efficient Frontier Showing the Individual Stocks 18% 16% 14% 12% 10% 8% Stock B Stock A 6% 4% 26 Stock C Stock D 0% 20%...
-
research paper for 1. Summary of what data virtualization is. 2. Using the Enterprise Pyramid model, explain how Data Virtualization transitions data to information. Provide an example of this...
-
Alexa owns a condominium near Cocoa Beach in Florida. In 2022, she incurs the following expenses in connection with her condo: Insurance $ 3,900 Mortgage interest 10,700 Property taxes 3,000 Repairs...
-
A circuit with a single capacitor is connected to a 120-V, 60-Hz source. (a) What is its capacitance if there is a current of 0.20 A in the circuit? (b) What would be the current if the source...
-
Jane1 Ashley was a staff accountant at Viccio & Martin, an accounting firm located in Windsor, Ontario. Jane had been a co-op student while in college, and during her first work term with the firm,...
-
On May 1, 2016, Smooth, Inc., purchased machinery for \(\$ 360,000\); the estimated useful life was eight years and the expected salvage value was \(\$ 15,000\). Straight-line depreciation is used....
-
Computer Intelligence, a computer software consulting company, has three major functional areas: computer programming, information systems consulting, and software training. Carol Bingham, a pricing...
-
In the graph, the df is most likely:
-
The vertical plane containing the utility cable turns 28 at the vertical pole OC. The tensions T 1 and T 2 are both 815 N. In order to prevent long-term leaning of the pole, guy wires AD and BE are...
-
An LED lamp manufacturer guarantees that the mean life of a certain type of LED lamp is at least 25,000 hours. A random sample of 49 LED lamps has a mean life of 24,800 hours. Assume the population...
-
A long, vertical wall separates seawater from fresh water. If the seawater stands at a depth of \(7 \mathrm{~m}\), what depth of freshwater is required to give a zero resultant force on the wall?...
-
Discuss briefly the objective and requirements of the ISO 14001 scheme and Europe's eco-management and audit scheme (EMAS), and list the key differences in the requirements of the two schemes.
-
Which of the following statements about boosting is false? a. Boosting works best when using logistic regression models as the individual classifiers. b. Boosting constructs a sequence of classifiers...
-
Which of the following statements about the architecture of a neural network is false? a. The output layer of a neural network for a binary classification task produces an observations probability of...
-
Jim (a 35 year old Australian resident individual) works as a flight attendant for Qantas. He had private health insurance with hospital cover (the excess for the policy is $500) for the entire...
-
The graph of an equation is given. (a) Find the intercepts. (b) Indicate whether the graph is symmetric with respect to the x-axis, the y-axis, or the origin. -3 6 -6 3 x
-
\(\mathrm{HCl}\) is being absorbed from two air streams into water in a countercurrent staged laboratory absorber at \(10.0^{\circ} \mathrm{C}\) and a pressure of \(2.0 \mathrm{~atm}\). Feed rate of...
-
An absorption column for laboratory use has been carefully constructed so that it has exactly four equilibrium stages and is being used to measure equilibrium data. Water is used as solvent to absorb...
-
Read Section 13.4 on crossflow in Chapter 13 before proceeding. We wish to strip \(\mathrm{CO}_{2}\) from a liquid solvent using air as carrier gas. Because air and \(\mathrm{CO}_{2}\) mixtures are...
![Mobile App Logo](https://dsd5zvtm8ll6.cloudfront.net/includes/images/mobile/finalLogo.png)
Study smarter with the SolutionInn App