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A heat engine with a high-temperature reservoir at 350 has an efficiency of 0.25. What is the maximum possible temperature of the cold reservoir? (Answer in K)
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Question: Standing waves on a wire are described by y(x,t)=(ASWsinkx)sin?t, with ASW = 3.00mm , ? = 975rad/s , and k = 0.790?rad/m . The left end of the wire is at x = 0. Part A: At what distances from the left end are t ...
Question: An object of mass m attached to a spring of force constant k oscillates with simple harmonic motion. The maximum displacement from equilibrium is A and the total mechanical energy of the system is E. What is th ...
Question: A rock is dropped from a sea cliff and the sound of it striking the ocean is heard 3.3 s later. If the speed of sound is 340 m/s, how high is the cliff? The response must be typed, single spaced, must be in tim ...
A bullet is shot straight up into air from ground. It reaches maximum height = 757m. Calculate initial speed of bullet in m/s & using the results calculate total flight time t in seconds until the bullet reached the grou ...
Question: Suppose that two stars in a binary star system are separated by a distance of 90 million kilometers and are located at a distance of 180 light-years from Earth. Part A What is the angular separation of the two ...
Question: A proton moves along the x-axis with vx=1.0 x 10 7 m/s. a) As it passes the origin, what are the strength and direction of the magnetic field at the (1 cm, 0 cm, 0 cm) position? Give your answer using unit vect ...
Question: Part A: Calculate the period of a satellite orbiting the Moon, 91km above the Moon's surface. Ignore effects of the Earth. The radius of the Moon is 1740 km. Express your answer using three significant figures ...
Problem: A block oscillating on a spring has a maximum speed of 20cm/s. What will be the block's maximum speed if its totalenergy is doubled? Explain. (in its simplest form of physics,please) The response must be typed, ...
Question: The starter motor of a car engine draws an electric current of 110 A from the battery. The copper wire to the motor is 4.20 mm in diameter and 1.73 m long. The starter motor runs for 0.95 s before the car engin ...
Atoms bond to atoms through their electrons the following analogy will be used to help us understand how this occurs. Imagine that the atoms of different elements are like kids coming to school. Each kid comes to school ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
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