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A particle of mass m and energy E is inside a square tube with infinite potential barriers at x = 0, x =a, y = 0 and y = a. The tube is infinitely long in the z direction. Inside the tube, V = 0.
Calculate the entropy change of steam between states P1 = 36 bar, T1 = 250 oC, and P2 = 22 bar, T2 = 400oC by direct application of the definition of entropy. Hint: devise a path of constant-pressur
Calculate the electric field E at the center of the cylinder (since the radius is much larger than the height, the edge effects can be neglected)
He stops one-fifth of the way along the bridge. What is the magnitude of the force that a concrete support exerts on the bridge at the near end?
A bird watcher meanders through the woods, walking 0.519 km due east, 0.759 km due south, and 2.14 km in a direction 35.4° north of west. The time required for this trip is 2.60 hr. Determine th
A wire is bent to fit the curve y = 1 - x^2. A string is stretched from the origin to a point (x,y) on the curve. Use the method of Lagrange multiplier to find (x,y) to minimize the length of the st
For the position of the box given, determine the force in the cable and the reactions between the box and the chute. The chure is parallel to the xz plane. Neglect the size of the box and the winch.
When a capacitor has a charge of magnitude 57 µC on each plate, the potential difference across the plates is 11 V. How much energy is stored in this capacitor when the potential difference a
It takes the elevator in a skyscraper 4.3s to reach its cruising speed of 13m/s . A 67kg passenger gets aboard on the ground floor. What is the passenger's weight while the elevator is speeding up
What is the potential difference across the headlight bulbs when they are the only load on the battery? (Give your answer to four significant figures.)
At he passes next to an observer on the space station (x=x'), the observer sees the pilot lit up at the same time by both lights. A) Describe what the pilot sees as he flies past the space station a
The rotational inertia of a cube is Ic = [(1)/(6)]mcS2 , where mc is the mass of the cube and S is the length of its side. If the cube and the sphere are suspended from the same wire, what is the
A father racing his son has half the kinetic energy of the son, who has half the mass of the father.The father speeds up by 1.0 m/s and then has the same kinetic energy as the son. What are the orig
Any two conductors can be considered to be a capacitor. Suppose one conductor is a sphere of radius "a" and the other is sphere of radius "b". the centers of the conductors are a distance "d" apart,
What is the probability that the system will be found in its original configuration a long time later? Plot the multiplicity and entropy as a function of the amount of energy in solid A.
Then, what wavelength photons are required to excite electrons from the ground state (n=1) to the second excited state (n=3)?
How thick should the window pane be in order for the air conditioner to exactly remove the heat coming in through the window if it is 27 C inside and 36 C outside?
Estimate the size of the instrument needed (for 400 bar). If you assume the radius of the mercury column was 1cm, what was the weight of the mercury in the instrument?
(RC circuit) 5 identical resistors with resistance R are connected in series, while 5 identical capacitors with capacitance C are connected in parallel. The internal resistance of the battery is neg
As observed by the juggler, what is the ball's total time of flight? What is the displacement of the ball during its rise?
Boral is a commercial shielding material consisting of approximately equal parts by weight of boron carbide (B4C) and aluminum compressed to about 95% theoretical density (2.608 g/cm3) and clad with
Consider an equilateral triangle, inscribed in a circle of radius a, with a point charge q at each vertex. The electric field is zero at the center, but surprisingly there are three other points ins
The description of your cook stove brags that the stove can warm 1 L of water to boiling in about 12 min. (a) Estimate the minimum amount of gasoline you should take on your trip.
You are preparing for a 5-day backpacking trip where you plan to use a gasoline cook stove for about 30 min each morning and night. The description of your cook stove brags that the stove can warm