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The titanium shell of an SR-71 airplane would expand when flying at a speed exceeding 3 times the speed of sound. If the skin of the plane is 400 degrees C and the linear coefficient of expansion for titanium is 5x10 -6 /C when flying at 3 times the speed of sound, how much would a 10-meter long (originally at 0C) rod portion (1-dimension) of the airplane expand? Final answer in centimeters and show all of your work please
Find, using symmetry, the direction of the electric field at point P above the center of the square. (hint, how do the fields due to the four sides add up?)
A thin uniform rod (mass = 1.75 kg) swings about an axis that passes through one end of the rod, What is the maximum kinetic energy of the rod
Juan aims his boat directly across a river flowing at 8 miles/hour. Juan's boat travels at 6 miles/hour in still water. How fast does Juan travel relative to shore?
A "sun yacht" is a spacecraft with a large sail that is pushed by sunlight. Although such a push is tiny in everyday circumstances,it can be large enough to send the spacecraft outward from the Sunon a cost-free but slow trip. Suppose that the spa..
Problem 1: Which of the following multiples of the fundamental frequency will not produce resonance for a children swing?
An electromagnetic wave in a vacuum has a magnetic field with a magnitude of 1.29 × 10-6 T. What is the intensity S of the wave
An explosive charge imparts a velocity of 10,350 feet per second to a mortar as it exits the muzzle of mortar. If the mortar is elevated at 80 degrees what are the horizontal and vertical velocities on the mortar shell.
A cube with sides of length 4 meters is placed with one corner at the origin. An electric field of E = 2xi + 3j) N/C is in the region of the cube. Find the net flux through the cube
What is the total energy of the system? What is the amplitude of vibration? What is the frequency of the vibration? What is the maximum velocity?
A 0.21-kg pinecone falls 10 m to the ground, where it lands with a speed of 13 m/s. How much work was done on the pine cone by air resistance
A janitor holds the handle if his mop such that it makes 60 degrees with the floor. if he pushes with a force of 80 lbs, what force will drive the mop against the floor?
A beam of light is incident from air on the ground of a liquid. Estimate the critical angle for the liquid when surrounded by air
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