Question: 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

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?

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Physics Questions!

Grunar Industries produces the component parts needed for its popular non-commercial-use drones. One of the key parts has become more costly to produce than first planned, however, so management is...

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...

4. The bicycle alone has a mass of 10kg. A person pushes the bicycle with a force of 75 N [N] at a constant speed. Recall Newton's first law of motion. a) Name The Four Forces Acting On The Bicycle...

When a 50.0 kg skier (initially at rest) skis down a ramp located... 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)...

1. A baseball bat has 120 J of kinetic energy as it hits a baseball (m = 0.145 kg). (a) If the baseball bat transfers 70 J of its kinetic energy to the baseball, what is the...

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. What...

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....

Can you post a link dwg format after doing this? you can upload to google drive/onedrive 1. Your first task is to draw the given 3D object (Figure 1) in AutoCAD. 1.1. The unit of the dimensions are...

In The Fashion Channel case or in any marketing case for that matter, segmentation comes before targeting and positioning. Do you agree or disagree? Write a short justification of your answer. (2) If...

1) Give the points at which the given function is not analytic; z z + 3i a) f(z) = b) f(z) = c) f(z) = d) f(z) = b) lim z 1 2i z - 2z +5iz z+z z + 4 2) Show that f(2)=z and f(2)= z.zare both nowhere...

Foot Locker, Inc., is a large global retailer of athletic footwear and apparel selling directly to customers and through the Internet. It includes the Foot Locker family of stores, Champs Sports,...

Which level of management typically sets goals and objectives for a company and decides what actions are necesssary to meet them? Group of answer choices Senior Management Supervisory Management...

The Patel Company has a gross payroll of $8 000 per day Withholdings for PAYG taxes are $2400 per day. There are no other deductions from employees earnings. The firm works five days per week, Monday...

show the each step answer is here: 15-715 15+715

Reactant A decomposes to form product B in a CSTR. If the surface reaction is limiting, what is the total pressure at which the rate will be a maximum when 60% conversion is achieved in the reactor...

The gas phase catalyzed reaction given below is irreversible and iscarried out in a differential reactor. (i) What is the reaction mechanism and (ii) Calculate the parameters of the rate law....

On 12/20/20x1, Sigma Company, a U.S.-based entity, acquired all of the outstanding common stock of Pooma Industries, which is located in Switzerland. The cost of acquiring Pooma was 8.2 million Swiss...

Design a minimum-mass symmetric three-bar truss (the area of member 1 and that of member 3 are the same) to support a load P, as was shown in Fig. 2.9. The following notation may be used: Pu = P cos...

Two charges ? q, are on parallel trajectories a distance d apart, moving with equal speeds v in opposite directions. We're interested in the force on + q due to??q at the instant they cross (Fig....

Show that the magnetic field of an infinite solenoid runs parallel to the axis, regardless of the cross-sectional shape of the coil, as long as that shape is constant along the length of the...

Find the angle between the body diagonals of a cube.

Number Needed to Treat Find the number of Viagra users that would need to stop using Viagra in order to prevent a single headache.

Absolute Risk Reduction Find the value of the absolute risk reduction for headaches in the treatment and placebo groups.

Calculate all three total differential operations of the function f(x1, x2, x3) = x1(x2 x3) x1(x2 x3) (4.1) and verify relation (4.2) of [18]. 3 Calculate the total differential dxf(x) by means of...