Efficiency of the engine
You are now operating a Carnot engine at 40% efficiency, which exhausts heat into a heat sink at 298 K. If you want to increase the efficiency of the engine to 65%, to what temperature would you have to raise the heat reservoir?
Now Priced at $5 (50% Discount)
Recommended (97%)
Rated (4.9/5)
Using the proposed solution for u, find the acceleration a. Find the distance the raindrop has fallen in t = 3.00 s.
A 0.450-kg ice puck, moving east with a speed of 3.00m/s, has a head-on collision with a 0.900-kg puck initially at rest. Assuming a perfectly elastic collision, what will be the speed direction of each object after the collision?
Define the drag coefficient as CD = D/q8c2. Also, define a similarity parameter called the Froude number, Fr= V/vgc. Using Buckingham's pi theorem, prove that CD =/(Fr).
Batteries are rated in terms of ampere-hours (A · h). For example, a battery that can produce a current of 2.00 A for 3.00 h is rated at 6.00 A · h. What is the total energy, in kilowatt-hours, stored in a 12.0-V battery rated at 55.0
Argue for or against the idea that vd is equal to the instantaneous velocity of the glider when it is halfway through the photo gate in space.
What's the eagle s speed just after grasping the rabbit? What percent of her kinetic energy is lost during the process? What would be the eagle s final speed if the rabbit were initially running toward her at 2.0 m/s?
What boundary conditions must be satisfied by the resonant wavelengths? How does a crack in the bell, such as in the Liberty Bell, affect the satisfying of the boundary conditions and the sound emanating from the bell?
A chain of mass m forming a circle of radius R is slipped on a smooth round cone with half-angle θ. Find the tension of the chain if it rotates with a constant angular velocity ω about a vertical axis coinciding with the symmetry axis
1925331
Questions Asked
3,689
Active Tutors
1428457
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Question 1: Describe how natural selection is part of population genetics among the Southwestern Athabaskan Amerindians
Keegan, an 8 -year-old, no longer thinks a row of pennies in front of him contains more pennies than a row of the same number of pennies
Humans, horses, porpoises, and bats all have very different forelimbs, but the bones inside them show similar shapes, positions, and development,
Question: In addition to natural selection, four other forces can drive evolutionary change. Which of these is NOT one of them?
Question: Which of these are pre-zygotic isolating mechanisms? (Select all that apply.)
Question: According to the reading, how many recognized fuel models are used for fire behavior (documented by Albini 1976)?
Question: Which of the following could explain why a particular prey item was captured/consumed at a higher rate?